View Full Version : Big mistake
Topspinmo
02-12-2025, 08:59 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
Bill14564
02-12-2025, 09:42 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
It might be worth your time to measure the flow to make sure you are actually getting 1.2gpm. Maybe the problem is not in the faucet.
Using some round numbers, 50' of 3/8" pipe would hold a little over 1/2 gallon of water. At 1.2gpm it would take about 30 seconds for tank water to get to the faucet. The first hot water to reach the faucet will be cooled along the way by the cool pipe so it will take a few more seconds before it feels hot. So maybe 45 seconds for water that feels hot from 1.2gpm faucet which is 50' from the hot water heater.
EDIT: Just timed it: 50 seconds at my farthest faucet.
MarshBendLover
02-12-2025, 10:08 AM
Did you remove the water restrictors in the connections and especially in the faucet?
My other home has a 123' foot run to the master faucets/bath/shower after the addition. When I ran the pex lines, I made sure to remove as many elbows as possible to increase flow rate and removed restrictors in the faucet/shower lines. Pulling out faucet restrictors was needed on all three faucets and I drilled out the shower restrictor too. This allowed for a 120 second delay of hot water first thing in the morning. Also increasing the temp of the hot water heater helped.
Topspinmo
02-12-2025, 12:55 PM
It might be worth your time to measure the flow to make sure you are actually getting 1.2gpm. Maybe the problem is not in the faucet.
Using some round numbers, 50' of 3/8" pipe would hold a little over 1/2 gallon of water. At 1.2gpm it would take about 30 seconds for tank water to get to the faucet. The first hot water to reach the faucet will be cooled along the way by the cool pipe so it will take a few more seconds before it feels hot. So maybe 45 seconds for water that feels hot from 1.2gpm faucet which is 50' from the hot water heater.
EDIT: Just timed it: 50 seconds at my farthest faucet.
Similar to mine, but, now know front faucet close or over minute. No changes in hose diameter or valve size just delta faucet. I can’t find specs on old delta I removed seems to be twice flow?
Topspinmo
02-12-2025, 12:59 PM
Did you remove the water restrictors in the connections and especially in the faucet?
My other home has a 123' foot run to the master faucets/bath/shower after the addition. When I ran the pex lines, I made sure to remove as many elbows as possible to increase flow rate and removed restrictors in the faucet/shower lines. Pulling out faucet restrictors was needed on all three faucets and I drilled out the shower restrictor too. This allowed for a 120 second delay of hot water first thing in the morning. Also increasing the temp of the hot water heater helped.
No, I didn’t see any in connectors. I sure the new faucet has restrictions somewhere cause takes Time just to fill my hand cupped to rinse mouth of tooth paste. I’ll try look see if this model can be derestricted?
Bill14564
02-12-2025, 01:06 PM
Similar to mine, but, now know front faucet close or over minute. No changes in hose diameter or valve size just delta faucet. I can’t find specs on old delta I removed seems to be twice flow?
Mine can fill a one quart measuring cup in 10 seconds which means a 1.5gpm flow rate. (could actually be 1.2gpm but hard to measure that close)
If I read things correctly, there is a US limit of 2.2gpm max @ 60psi but many companies produce the 1.2gpm @ 60psi fixtures to conserve water. (my house was >60psi last I checked so maybe that's why my measurement was closer to 1.5gpm)
So it's possible your last fixture was 2.2gpm and now you are getting a little more than half the flow. However, it would still be worth it to see how much time it takes to run one quart of water. If it is more than ten seconds then your flow is less than 1.5gpm and you should look for another restriction.
Quick check - is the new valve you installed fully open?
Topspinmo
02-12-2025, 01:19 PM
Mine can fill a one quart measuring cup in 10 seconds which means a 1.5gpm flow rate. (could actually be 1.2gpm but hard to measure that close)
If I read things correctly, there is a US limit of 2.2gpm max @ 60psi but many companies produce the 1.2gpm @ 60psi fixtures to conserve water. (my house was >60psi last I checked so maybe that's why my measurement was closer to 1.5gpm)
So it's possible your last fixture was 2.2gpm and now you are getting a little more than half the flow. However, it would still be worth it to see how much time it takes to run one quart of water. If it is more than ten seconds then your flow is less than 1.5gpm and you should look for another restriction.
Quick check - is the new valve you installed fully open?
Ok, I’ll time it, I sure the 20 plus year old delta had over 2.0 flow rate. I still got two in back so I’ll compare flow rate from them?
I will also check the shut off valves make sure they are fully open.
Topspinmo
02-12-2025, 01:32 PM
Ok, valves are fully open.
The new delta flow is 2 cups to 2.2 cups in 10 seconds. The old deltas in back measure 4.4 to 4.6 cups in 10 seconds. So stands to reason it will take twice as long to get hot water due to reduced flow. Unless I find easy way to open up flow I’ll just live with it no sense fixing something that’s not broke… I’ve looks at other brands most flow 1.2 to 1.5 GPM. One brand flowed 2.2 GPM some didn’t’ list flow spec’s.
Bill14564
02-12-2025, 01:44 PM
Ok, valves are fully open.
The new delta flow is 2 cups to 2.2 cups in 10 seconds. The old deltas in back measure 4.4 to 4.6 cups in 10 seconds. So stands to reason it will take twice as long to get hot water due to reduced flow. Unless I find easy way to open up flow I’ll just live with it no sense fixing something that’s not broke… I’ve looks at other brands most flow 1.2 to 1.5 GPM. One brand flowed 2.2 GPM some didn’t’ list flow spec’s.
2 cups in 10 seconds = 12 cups in 60 seconds = 0.75gpm
4.4 cups in 10 seconds = 26.4 cups in 60 seconds = 1.65gpm
From your numbers it would appear that either
- you have very low water pressure causing a 2gpm to only give 1.5gpm and a 1.2gpm to only give 0.75gpm
OR
- your old fixture is a 1.5gpm and something is wrong with the new parts used for your new fixture (blocked valve, blocked line, bad/blocked faucet)
What I would try in my home:
- Do I get the same flow for both straight hot water and straight cold water? They go through different valves and different lines so the same flow would point to the faucet as a problem.
- What flow do I get if I close the valve, remove the line from the faucet, put it into a bucket, then turn the valve back on? Then try the same thing at one of the faucets that seem to work correctly. If the flow is the same then the faucet is different and might be bad. If the flow is different, likely lower at the slow faucet, then maybe something in the valve or line to the faucet is bad.
MarshBendLover
02-12-2025, 03:25 PM
You look up on youtube, several videos on how to remove restrictor.
I have always removed mine. In my own opinion, generally, unscrew the tip where the water comes out, up inside will be a screen and behind that is usually a white plastic disc with about 5-7 holes (restrictor). It usually can be pried out with a screw driver, pulled out with needle nose, or drilled out/knocked out. Obviously I always do my own before install and I would never ever do one for a customer or tell a customer to do it for themselves . When I have to drill or knock it out, I get all the pieces. I also remove the screen. The screen just gives it a nice soft air flow, but slightly restricted.
My PP diverter/shower was a 2.2gph and now it's a 5.8. Getting shampoo out of your hair is easier too. I was worried my wife might think it's too hard since she is always acting so delicate, but surprisingly she still likes it.
Babbs1957
02-12-2025, 03:44 PM
Those showers designed to act like a rainfall are awful for getting shampoo/conditioner out of us with long hair. Low flow is ridiculous, especially with toilets too.
Topspinmo
02-12-2025, 05:33 PM
You look up on youtube, several videos on how to remove restrictor.
I have always removed mine. In my own opinion, generally, unscrew the tip where the water comes out, up inside will be a screen and behind that is usually a white plastic disc with about 5-7 holes (restrictor). It usually can be pried out with a screw driver, pulled out with needle nose, or drilled out/knocked out. Obviously I always do my own before install and I would never ever do one for a customer or tell a customer to do it for themselves . When I have to drill or knock it out, I get all the pieces. I also remove the screen. The screen just gives it a nice soft air flow, but slightly restricted.
My PP diverter/shower was a 2.2gph and now it's a 5.8. Getting shampoo out of your hair is easier too. I was worried my wife might think it's too hard since she is always acting so delicate, but surprisingly she still likes it.
Ok tried all the other stuff with no success.
I took off nozzle aerator as you suggested. Plenty flow with off. The one on left came with faucet I figure the pink disk was restrictor. I couldn’t get it apart, but I did have new one in my plumbing kit. I was able to take it apart and remove the green disk restriction.
Now getting plenty of flow, 8 cups in 10 seconds. Thanks ! Now I got more flow than before.
Topspinmo
02-12-2025, 05:35 PM
Thanks to all for suggestions and conclusions. Problem solved!
MarshBendLover
02-12-2025, 08:27 PM
wow, that green really is restricted. Glad it works good.
Cuervo
02-13-2025, 05:15 AM
Now I know this topic is about water flow, but I had a need for a plumber to change my garbage disposal, while he was here, I figured since my faucet was leaking, he might as well change my cartridge. For the next month I was having trouble with my hot water, so I call the same company this time it was another plumber that show up. He told me the problem was there was I safety switch in the cartridge to prevent the water from getting too hot. Within minutes he pulled it out then put it back in and the hot water flowed. I never knew this existed.
thevillagernie
02-13-2025, 06:00 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
could'nt you requested a larger size then reduce it at the faucet ?
Switter
02-13-2025, 06:36 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
If I'm not mistaken there is a federal regulation for faucet flow rates. I have typically bought Moen faucets in the past because you can easily remove the restrictor without hacking the faucet (in case you gotta return it for some reason).
Janie123
02-13-2025, 08:30 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
We had a recirc pump until we switched to a tankless water heater. However, we have a soaking tub, 50 gal capacity next to the shower and we installed an 8 gpm waterfall faucet or it would take about 30 minutes to fill the tub with the 1.8 gpm and then the first 15 minutes of water would have cooled off. So… when we turn the shower on, we just flip the tub on a full hot and we have hot water at the shower head in just a few seconds. We do the same with the faucets if hot water is needed which is not very often.
lawgolfer
02-13-2025, 08:48 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
Removing the restrictors in the new fixtures will help. In the shower, it will provide a much improved experience.
However, the time to deliver hot water at any fixture in the house is best improved by the addition of a Watts recirculating pump installed at the outlet of the hot water heater.
The Watts uses an ingenious system of continuously moving hot water through the hot pipes and returning it to the water heater via the cold water line. The system works by reason of a small manifold mounted at the fixture furtherest from the water heater. In the manifold are two valves. When the cold side of all the fixtures in the house are closed, the hot water circulates in a closed loop using the cold line as the return. When the cold water at any fixture is opened the valve in the manifold closes and the hot water does not circulate.
With the Watts pump in place, you will have hot water at all the fixtures in a matter of a few seconds vs the 50 seconds plus other people on this thread have reported. The only downside is that the water from the cold side of a fixture will not be completely cold until all the hot water has been cleared from the line. I consider that a minor inconvenience for the pleasure of having nearly instant hot water at the fixtures, particularly the shower.
The Watts costs approximately $225 at HD or Lowes. It's an easy DIY. If you can't DIY, any "handyman" will be able to do the job in less than 2 hours.
Topspinmo
02-13-2025, 08:55 AM
could'nt you requested a larger size then reduce it at the faucet ?
On this style faucet Looks like water restricted at faucet aerator which was glued together. I had different manufacturer one that could be easily disassembled and green plate with tiny hole drilled in was the restriction. I could have drill hole bigger and may try that later? I just removed it and got maximum flow which remove the aeration for soft splash. If I get too much splashing water out of sink I will experiment with green plate.
Topspinmo
02-13-2025, 08:59 AM
If I'm not mistaken there is a federal regulation for faucet flow rates. I have typically bought Moen faucets in the past because you can easily remove the restrictor without hacking the faucet (in case you gotta return it for some reason).
Yes you are correct I think it’s 2.2 GPM.
gmdds
02-13-2025, 09:20 AM
Here is an easy solution…I have it advertised on Nextdoor.
JRcorvette
02-13-2025, 09:23 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
We have a circulating pump with a timer so that in the morning we get close to instant hot water where we need it.
nn0wheremann
02-13-2025, 09:29 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
You can usually remove the flow restrictor with a needle nose pliers. Best done before installation, but if it really bothers you, then do it.
FredJacobs
02-13-2025, 09:29 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
If you install a recirculating pump on your water heater, you can get hot water in about 5 seconds. The pump constantly circulates hot water through your system so the hot water is available practically on demand. The down side is that you may have to wait 30 seconds for cold water.
MarshBendLover
02-13-2025, 11:12 AM
Recirc pump:
A small home may benefit, because basically you are heating all the hot lines in the home 24/7 unless you install the timer. The timer would kick on at 4am and off at 8am for the increase of use during morning showers. Also the cold lines get warm, so you run those a little longer to get cold water. It's really a preference, but a pump doesn't solve the initial issue of flow. The federal government decided that you will only use a certain amount of water per minute, just like water-saver (low flow) toilets, you only get 1.6g for #2 and 0.8 for #1. And usually you flush twice for #2.
However, you have to weigh the good with the bad with a pump. For example, my other home had copper lines from 96'. The hot copper lines were 187' feet total to all faucets. I also ran two water heaters in parallel. The loss of heat from the copper acting as a huge radiator 24/7 would have been a bad investment. When I upgraded to pex a few years ago, the loss may have balanced out with the cost of the pump had I gotten one. I also took into account the continuous use of a hot water heater(s) running and it's life expectancy. I chose and still chose not to install a pump in the large house.
Here in the village, I would prefer my house to be at 65 degrees in the summer and I pay for it gladly. I never really pay any attention to timing of hot water, I just pay attention to flow rate which is solved by removing the federal government from being involved in my bathroom needs.
Ignatz
02-14-2025, 06:20 AM
The very first thing I did when we bought our home last year was to remove the restrictor in the master shower.
Of course the increased water flow exposed a partially blocked floor drain that the warranty department had to fix (a big glop of tile grout was in the drain pipe).
There’s nothing like a good long hot shower with strong water flow!
MikeN
02-14-2025, 06:48 AM
Couple of things you can do. Remove the filter on the replacement faucet. It restricts water flow. Other thing you can do is increase the temperature of your water system. Most are set at 120. Increase it to 130 degrees
Rocksnap
02-14-2025, 07:22 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
Perhaps the option of having a simple hot water recirculating system that you could activate ahead of time when you want to use it? I’ve installed a thermostatically controlled crossover line at the furthest sink fixture from the water heater. And a light duty recirculating pump on the hot water line on a timer. When activated, hot water will be at the ready.
CybrSage
02-14-2025, 08:13 AM
Put the tub on hot as well, much shorter wait.
Plus, turn up the water temp to 130°F. Doing that greatly reduced the time for hot water to arrive.
CybrSage
02-14-2025, 08:16 AM
decided that you will only use a certain amount of water per minute, just like water-saver (low flow) toilets, you only get 1.6g for #2 and 0.8 for #1. And usually you flush twice for #2.
Honestly, see a doctor about that. Needing to flush twice is not normal.
Topspinmo
02-15-2025, 12:34 PM
Ok, I was bored this morning so drilled out the green restrictor disk tiny hole was .060. I drilled it out to .100 thousands, no enough to my liking. Further drilled or out to .160 thousands and that seems to be sweet spot for me. Good flow with a little aeration.
gmnirr
02-16-2025, 11:24 AM
For me, I changed out bathroom faucet when I replaced Accor hoses. Now I have to wait even longer for hot water. The new faucet has flow rate of 1.2 GPM which takes for ever to get hot water even close to water heater.
Also the hose connection different size, 1/2” vs 3/8” (not big deal). I could imagine how long it take to get to furthest faucet. Which I timed over 30 seconds with old delta that flow I guessing twice as much (can’t find spec on old one).
So if plan in replacement look at flow rate if you have to wait for hot water.
https://www.homedepot.com/p/Delta-Foundations-4-in-Centerset-Single-Handle-Bathroom-Faucet-in-Polished-Chrome-B510LF-PPU-12/323441964?source=shoppingads&locale=en-US&srsltid=AfmBOoqQhje9EWagf9otUDt5IFgVqx9wNrbOA6d9wh h63e1oOEn4mgJEGi4&gQT=1
Have a plumber install a hot water recirculater pump
vBulletin® v3.8.11, Copyright ©2000-2025, vBulletin Solutions Inc.