2003? New water heater is long overdue. Suggest replacing it before the TP valve is not the only place water is coming out.

Very helpful tips everyone! TOTV at its best.

It is a pressure valve for your water pipe, they punt in the wall. If your home is over ten years old, get new hot water tank with a built in pressure valve

Their is a presser vale in the wall on the other side. Had a plumber replace once, cost $125. next time i got one on the internet under $30 and did it myself.:welcome:

AC condensate line
 

AC condensate line. Normal for it to drip or run when AC is running.

Yup WATER HEATER Pressure Relief valve! Might be a bad valve, more than likely your Expansion Tank is bad , but a bad Thermostat could be overheating your water, and 3rd Check your Water pressure, these Regulators are old! Might call an Honest plumber

Everything RetiredGuy123 said was spot on. I just wanted to make sure everyone understands...it is NEVER good to cap a pressure relief valve. Doing this turns your water heater into a BOMB that will destroy your house and perhaps your neighbors homes, and most likely kill you.

The other point I'd like to make is that the water heater is 18 years old. While it MIGHT last a few more years, it IS past it's normal expected service life. Insurance companies are starting to deny coverage if your water heater is over 15 years old. I would NOT put any more money into this tank.

It is always better to replace things like this on YOUR time, and not wait until it leaks, possibly causing damage to the home or belongings. If it were my house, I would budget for a new one and replace it along with adding an expansion tank. To have a plumber do this would be around $1100, from what I've been told lately.

Hope this helps!

Frank D.

Also note the expansion tank is designed to protect from overpressure on the incoming cold water side.
It will do nothing to protect from a faulty pressure relief valve on the hot water side.

Any know what the 1/2” line coming off the cold side at top with the valve? Which looks like it runs down to drain? Never seen that set up before? (The picture didn’t come with quote) it probably leaking from that valve which looks like were expansion tank would go? If it was leaking from the side relief valve should be able to see it in the drain pan it it has one. I wouldn’t think it would be plumbed all way to outside? If so first for me to see that?

In CYV the A/C condenser drain usually by the A/c unit popping up out of the ground on other side of house behind wall. IMO That picture is water heater overflow drain due to it comes out of side of the house.

I second the replacement. We just replaced the original (2003) tank when house was purchased in Sept. fear of it failing was #1 reason!
We went with Mike Scott plumbing , had 3 separate bids . They charged $750 for install includes over flow tank. Very happy with their price and installers.

We have the same villa as you, built in 2006. That is from the hot water heater. In 2017 ours starting doing the same thing (we had original water heater). Decided to replace the heater and add an expansion tank - no troubles since. We went through TECO to get the water heater and tank, reasonably priced and installed the next day.

Air conditioner drip pipe. That’s how it works.

Post #7
OP stated it's coming from the hot water pressure relief valve.

:ohdear: You probably are fairly new here judging by your join date, so I'll be nice and try to explain...... posting is not mandatory. If you don't know what you're talking about it's O.K. to just stay out of it. It also would be helpful if people read all the posts before commenting. :icon_wink: