[TripleHotFudge]

I just drained my boiler system and removed the pressure tank. I've thought for awhile now that it was bad. The boiler power has been off for a couple of days so everything was room temperature when I removed the pressure tank. And it was literally filled to the max with nasty, dirty water.


I need a new pressure tank, yes?

Second picture of my pressure tank model.

 

[57TinkerMan]

Did water come out to the little valve on the bottom of the tank? If so, you need a tank. Since the tanks are relatively inexpensive and you have it removed from the system why not just put a new one on. You need to make sure the air pressure in the tank is at 12 psig b4 you install it.

 

[TripleHotFudge]

Did water come out to the little valve on the bottom of the tank? If so, you need a tank. Since the tanks are relatively inexpensive and you have it removed from the system why not just put a new one on. You need to make sure the air pressure in the tank is at 12 psig b4 you install it.

Water came out of the top of the tank where it actually attaches to the boiler loop system by way of the threading. No water came out of the bottom of the tank. I think the diaphram is shot.


I wouldn't put a new one on unless I thought I need a new one. But in this case that is what I believe to be true.


What part do I need to put in place while I re-order a new pressure tank? I need like a threaded end cap so I can refill the system with water while I wait for a replacement tank?

 

[57TinkerMan]

Just screw the old tank back in until new tank arrives. Do you still need heat? If not, don't bother refilling the system at this point.

 

[TripleHotFudge]

Just screw the old tank back in until new tank arrives. Do you still need heat? If not, don't bother refilling the system at this point.

No, no more heat is necessary for this season. I can do what you suggest but a simple cap screw on would be easier for me. The dummies who built my boiler system made it so the tank has to lay horizontal to the ground instead of hanging vertical like it should be. Which means I have to support it with some kind of hack, such as a piece/block of wood.


Oh, and then there's the issue of re-draining the bad tank. Not a big deal but this is another small reason I would rather just buy an end pipe cap.

 

[57TinkerMan]

A 1/2" black iron plug would probably work for you.

 

[TripleHotFudge]

A 1/2" black iron plug would probably work for you.



View attachment 599835

Thank You very much. That looks like a winner. I also came across a part called "Loop End Cap". Seems appropriately titled. I'll get something to plug this hole. It's not rocket science. :smile:


Just a little humor there for the day. Maybe some left over gum? No wait. That's not gonna work.

 

[bfrabel]

Instead of the cap or plug, I would recommend installing a shutoff valve. That way you won't need to drain the whole system in order to change the tank next time.

So, either find a shutoff valve with 1/2" male threads on one side and female on the other, or get a short 1/2" steel nipple and then a standard gate or ball valve with female threads on both ends. If you go with a ball valve, be sure that the handle has room to turn when you install it.

 

[beenthere]

Hold up. Does that tank screw fast to a fill trol valve.