Hot water troubleshoot and recirculating pump question

[Geofd]

I think those hot water bypass valves are for use when there is no pumped return line watts makes one with a very good description. I meant you could shut off the hot line out, then check for flow on the hot side

 

[wopachop]

Thanks for the help. Yes the pump would need to be reduced from 3/4 down to 3/8th.

But doesn't that happen anyway since the bypass valve is connected to a 3/8th angle valve?

 

[Geofd]

There are some good examples on....Amazon who would have thought they are not 3/8" looks pretty simple one kit comes with everything

 

[wopachop]

Darn I didn't understand.
What is not 3/8ths?

 

[havasu]

Speaking of pumps, my Grundfos pump went out on me today. It now takes me 2 minutes to get hot water at the back of the house.

 

[Geofd]

Darn I didn't understand.
What is not 3/8ths?

If you search hot water bypass valve you can see pictures of the valve and complete braided hose kit

 

[wopachop]

Still havnt fixed this. Called customer service and the lady on the phone was a much better plumber than me. They were closing. But calling back Monday she is going to have me hook a garden hose to the water heater and bypass the pipes.

Then i believe she is going to have me turn each faucet on, and to note the amount of flow. I think maybe the digital display near the WH is going to show that.

Any advice to get ready? She thinks its a crossover issue just like everyone else. Problem is nobody can find it.

 

[Geofd]

Just change the cartridges in your single handle faucets or isolate them one at a time to see which one it is,

 

[wopachop]

By isolate do you mean turn off the angle valves?

 

[Geofd]

Yes

 

[wopachop]

What do you guys do when its a super old valve and dont want to move it?