[elevatorman]

Originally Posted by TVJim

You DO NEED the expansion tank, there is a check valve in the line between your house and the street. When the water heater cycles the expansion tank suppresses the pressure of the expanding heated water.

Have a plumber change out the expansion tank and replace all the shutoff valves while they are there.

This is true unless you have a tankless water heater, According to the 2018 International Plumbing Code (IPC) section 608.3, tankless water heaters do not require a thermal expansion tank when no water storage device is used. However, there are a few exceptions. If a tankless water heater is being used in conjunction with a tank water heater or a recirculating system that utilizes a storage tank in a closed plumbing system, an expansion tank is required to control thermal expansion.This does not apply directly to most homeowners who have a tankless water heater system.

[bonrich]

How do you pressurize a new expansion tank?

[retiredguy123]

Originally Posted by bonrich

How do you pressurize a new expansion tank?

You can do it with a handheld bicycle pump. Measure your house water pressure, and pump the expansion tank up to about the same pressure.

[midiwiz]

Originally Posted by n8xwb

I have had several of my push/pull shutoff valves shutoff and have to be reset. I have read numerous posts over the years talking about checking water pressure, install new, better valves, etc. Years ago I decided to try a cheap almost free solution:

I drilled a small hole in the plastic valve and secured the valve in the on position (pushed in) using a plastic cable tie. This has worked perfectly on multiple valves. Of course, you will need to keep a supply of spare ties because, when/if you need to turn off the valve you must cut and remove the tie! See attached photo.

that works? interesting.... I wonder how the CPVC is handling the additional pressure .....

[retiredguy123]

Originally Posted by lightworker888

Our cold water shut off valve pops out on its own every day. Does anyone else experience this? What is the solution?

Note that the Accor push-pull valves are not supposed to close on their own, regardless of the pressure. These valves have a 10 year warranty that, amazingly, includes materials and labor. If the valve is less than 10 years old, I would suggest calling the Accor company and file a warranty claim:

Supply Stop Valves | Push Fit Technology | PUSHON® | ACCOR Technology
800-447-5848

[Daddymac]

Originally Posted by lightworker888

Our cold water shut off valve pops out on its own every day. Does anyone else experience this? What is the solution?

I did!!! It’s was the. Expansion tank...

[Scorpyo]

Originally Posted by Marathon Man

I would not recommend this. Also, I would not recommend replacing a fuse with a piece of wire.

I agree wholeheartedly. Only an idiot would replace a fuse with a piece of wire. Everyone knows you should use a penny.

[tophcfa]

Those button valves are a cheap piece of crap. One failed and flooded our neighbors house and another one leaked and damaged our friends home. Fortunately, our home was renovated before we purchased it and the renovations included new ADA height toilets with new throw valves on the feeder lines. Replacement of those button valves should be on the to do list if you ever need to hire a plumber.

[wsachs]

14 turn shut off valves are about $10 each. Most handymen should be able to do that for you or DIY. Plenty of Youtube videos out there to show you how. Rather than just do those two, replace them all at the same time.

[Keefelane66]

Why Rube Goldberg something when it’s simple to fix it once and done.

[New Englander]

Originally Posted by Scorpyo

I agree wholeheartedly. Only an idiot would replace a fuse with a piece of wire. Everyone knows you should use a penny.

I'm not wasting a penny. I use a washer.

[rogerk]

Originally Posted by lightworker888

Our cold water shut off valve pops out on its own every day. Does anyone else experience this? What is the solution?

Simple solution is to replace the push-pull valves with more durable valves. When the valve or the push/pull handle pops off and causes a flood it will cost a lot more than a $10 (or less) valve. If you are handy it is fairly straight forward, if not a plumber can easily do it.

Our home, built new in 2019 does NOT have an expansion tank above the hot water heater, probably because we have tankless water heaters.

[retiredguy123]

Originally Posted by New Englander

I'm not wasting a penny. I use a washer.

Have you checked the price of washers lately?

[Brad-tv]

Originally Posted by Marathon Man

I would not recommend this. Also, I would not recommend replacing a fuse with a piece of wire.

You have to ask yourself why is it popping? To stop it from popping by forcing it closed you did not solve the problem or the reason it popped? Forcing it shut did not solve the problem why did it pop?
If you’re in a house with a electric or gas water heater and stuff like this happens I could almost guarantee you you have a bad expansion tank! If your tank is anywhere between three and five years old and you do not know how to check it replace it before a huge problem can occur. If one of your water valves pops underneath your sink and it blows you have a disaster on your hands.

[Brad-tv]

Originally Posted by villagetinker

Check your expansion tank, the cycling of the hot water heater causes the pressure swings if the expansion tank has failed (it is full of water). The next item to fail will probably cause a lot of water damage.

1000% correct!!!
Unfortunately most people moving here from far away are not used to dealing with expansion tanks google it asap