domestic plumbing mysteries

Niall Keane

http://a03-b03.mypicturetown.com:80/P2PwebCmdController/cache/gsHQZtC%3DvFFbJiS6YzcvF0dR3M7_%3Dq10%26%25Ei5JJjAzrec.4pVaCMkoguifKrIX0/item.jpg?rot=1

http://a03-b03.mypicturetown.com:80/P2PwebCmdController/cache/M6aWGUkieB8ymBtf_kl*w58_C%3DR2ZB%3Dt5SDaRGNMgY%262j1x.Df%25MGudRTfxzNzo/item.jpg?rot=1

Can anyone tell what the red tank is? I suspect its a expansion tank ??? I also suspect its upsidedown??

I ask this as the emersion already "expands" into the tank in the attic, which has the usual overflow to the exterior. So I don't get why this would be necessary? This all came to light with the water shortages when I actually started to look at the system.

any suggestions?

CJhaughey

Yep it's an expansion tank, not for potable water. Blue is Potable.
Mine is sideways, I don't think it matters which orientation they are in.

Niall Keane

Thanks for the reply, would it not rely on gravity to feed back the excess water? otherwise would it not just eventually fill and cease to act as one? Or is there some other masionic secret at play here?

onq

Niall Keane wrote: »

Thanks for the reply, would it not rely on gravity to feed back the excess water? otherwise would it not just eventually fill and cease to act as one? Or is there some other masionic secret at play here?

Expanding diaphragm within the vessel IIRC.

Sorry, yes - Masonic Secret at Play.

ONQ.

Poor Uncle Tom

http://www.anglianpumping.com/cats/Pressure-vessels.asp?gclid=CKS1itLS5Z8CFZdi4wodkWRXGw

looks like 8 litre pressure vessel, down the end of the link. If your system was out of water you should get the system checked out and the pressure tested.