Hot Water Pressure Relief Valve

Old Biscuit thank you for the tip "Remove the exhaust shield so you can get better access".
I removed the shield and it was easy to get pipe wrench on valve. Unscrewed and replaced with new one.
Question: The new valve was exactly like the old one but the 4" tube was free to move back and forth. The old was pretty stiff to move? Is its because it has been there for 15 years? Everything in the old valve looked pretty corroded.

Thanks Again
Rambler
Delaware

If that "4-inch tube" was the probe that goes into the tank, normal for the new one to wobble.

Opening the pop-off on a TP Valve that has any age at all on it, usually means it'll drip afterwards. It's a feature I don't "test."

j-d wrote:
If that "4-inch tube" was the probe that goes into the tank, normal for the new one to wobble.

Opening the pop-off on a TP Valve that has any age at all on it, usually means it'll drip afterwards. It's a feature I don't "test."

Must take you a long time to drain the water from the hot water tank when you want to flush out your tank. Or do you flush your tank?

We have a Suburban 6-gal and the water fairly gushes out when I remove the Anode Rod/Drain Plug assembly. I don't open or touch the PT Valve. Actually I try to not even look at it. I have a plastic tank flusher and sweep the tank out with that.

Lenny K wrote:

j-d wrote:
If that "4-inch tube" was the probe that goes into the tank, normal for the new one to wobble.

Opening the pop-off on a TP Valve that has any age at all on it, usually means it'll drip afterwards. It's a feature I don't "test."

Must take you a long time to drain the water from the hot water tank when you want to flush out your tank. Or do you flush your tank?

If there's no check valve at the outlet, opening a hot water tap will allow it to drain as quickly as it would when opening the relief valve. Either one prevents the formation of a vacuum in the tank.

Occasionally opening a T&P Relief Valve, allowing water to flow under pressure and then letting it SNAP closed keeps scale/crud from building up.

T&P Relief Valve MFGs recommending 'exercising' at least once a year

Old-Biscuit wrote:
Occasionally opening a T&P Relief Valve, allowing water to flow under pressure and then letting it SNAP closed keeps scale/crud from building up.

T&P Relief Valve MFGs recommending 'exercising' at least once a year

True. A single lady camped next to us wanted to know about replacing hers because it dripped. I suggested as a first step that we open and close it a few times. It was already leaking so what harm could it cause? That fixed it, at least for remainder of the month we were there.