Circulator noise when hot?

EBEBRATT-Ed · December 29

I agree with @hot_rod

You have a ball valve at the boiler in the MU water. You could put the tee between the ball valve and the boiler. Put the EX tank and a pressure gauge there.

If you have (in addition to the valve we see) another valve upstream of the valve we see that only serves the boiler cut the tees in between the two valves.

Make sure you install the ex tank with the nipple pointed up and support the tank or make sure where you cut the tee in you can support the tee that feeds the tank. A drain where the tanks connects is noce to have

AlwaysLearning2024 · December 29

Thank you @hot_rod and @EBEBRATT-Ed .

Is this correct? I added a tee with a pressure guage.

I have a steel beam right above the junction where the EX tank would hang. Seeing that this re-pipe woutl be copper and not have the tensile strength

, maybe a short steel or bronze nipple with a clevis hanger of some sort to support the EX. Or am I totally off here! Thank you!

EBEBRATT-Ed · 12:09AM

@AlwaysLearning2024

Yes that will be fine. You could put another hanger on the city water supply to the expansion tank tee. You don't really need it for support, but it might be easier to hang it. One hanger is plenty though

hot_rod · 12:42AM

here is super simple and low cost

Press in the FIP tee

Screw the iso ball valve into that tee

Screw a 1/2 x 4 black nipple and black ell into the iso valve

Screw tank into ell

Threaded rod or any suitable hanger rod around the black nipple

No need to mess with the fill valve location

AlwaysLearning2024 · 1:18AM

Amazing @hot_rod !

When moving the EX, I would shut off the boiler. Shut off the current service valve for the EX. Close both valves from the MU water. Apply the changes you suggested.

I’m assuming the EX will need to be drained and pressure checked and reset.

How is system pressure then established while the repair is being made if both the EX and the any water are both essentially OFF?

This is all so I understand the next steps. I will have a more qualified person with me.

Thank you all very much! Thai forum is truly helpful and generous.

hot_rod · 2:10AM

You are 2/3 of the way there.

Is there another valve on this return line, or multiple valves?

You need to completely isolate that section or pipe, to cut into the 1/2" copper line

or else drain the system down to that level.

If you know a plumber with a freeze cuff, you could freeze the 1/2" line between the two press couplings to cut in the new tee just below the 1/2" valve.

A thrill-seeking plumber may just drop the pressure to zero, cut a press ball valve into the copper line just above the ell where it ties into the black steel tee :)

There are some 1/2" tap a line valves, but quite $$ Although sometimes on ebay they go pretty cheap.\

If you take on this project, remove the tank and plug that yellow tank isolation valve.

Circulator noise when hot?

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