Cold water tank in loft - vent pipe expelling water

[obiplumbkinobi]

It's ure shower mixer then! Another sleepless night avoided

 

[samday]

the shower is fed from cold from the tank and hot from the cylinder though not by mains.

 

[obiplumbkinobi]

Samday, just jesting, get a plumber in pronto to sort out shower.

Always give as much info about a problem, tis difficult to diagnose otherwise, there are alot of things that can affect a system often giving the same symptom, post as much detail as you can.

 

[Goldberg]

i have noticed now it only happens when the shower pump is on if that matters?

What's the make and model of the shower pump?

when cold it does not happen.

When what is cold?

I have a stone in front of that I've squeezed until it bleeds, but after three pages we're hardly any closer to getting the full story from you.

 

[obiplumbkinobi]

Shower is fed by pump though, in all probability pushing water "uphill"

 

[obiplumbkinobi]

I reckon someone in the past hasn't put the pump hot outlet direct to the shower, tis but a guess!

 

[samday]

When shower pump is ON the problem occurs, so thus only when hot....

Don't know why this would affect the vent pipe though.

 

[Goldberg]

When shower pump is ON the problem occurs, so thus only when hot....

I give in. I stilll don't know what is hot, but it hardly matters now.

Don't know why this would affect the vent pipe though.

Your plumber will explain. There's no hope of you doing the job yourself because explaining to you how to do it would take more time than there is left in the universe.

 

[obiplumbkinobi]

Can you send a pic of the pump?

 

[samday]

the shower pump is salamander. sorry, don't mean to make you mad. thanks for your help.

 

[Goldberg]

the shower pump is salamander.

For a minute there I thought you'd fully answered a question. How foolish of me.

 

[obiplumbkinobi]

I'm not mad, couldn't say the same for Goldberg It's just youve been a little scant on the details. Does your pump have four pipes or two?

 

[dextrous]

if it helps, the CWSV is black

 

[Nige F]

I got cross eyed reading this Shower pump incorrectly fitted to cylinder/outlet. Pulls water out -vent level drops- pump stops/stutters/draws air. -Column of water in vent surges up + out ....Like the Meerkat says .....Simple

 

[obiplumbkinobi]

After all that hard work, someone else comes in and steals the glory