Reverse auto air vent devise?

[Sammyt]

Is there a devise that can be attached to a fixed ceiling shower head to allow the water to drain out once the shower has finished being used. There is pipework in the loft that we can attach a devise to.


Im in thinking something that's a reverse of an auto air vent. Or a durgo. Does such devise exist??


So we installed a new aqualisa digital system with a big 400mm shower head fixed in the ceiling.


Randomly the shower will will be heard running, only dribbling out from the fixed ceiling head but can run like this for a matter of 5-10minutes. Sometimes during the middle of the night which wakes them up.


i think it's the water sitting inside the large head dribbling out randomly.

 

[Chalked]

The trouble is you could fit something in the loft, but the water dribbling is in the shower head, so won't stop it. A small check valve fitted into the inlet of the shower head might help. ( but don't quote me on that)
Toolstation > Taps & Showers > Shower Valves > Shower Check Valve

 

[PlumbBobBob]

you could put something in the bath to quieten the dripping? a thick towel maybe.

 

[Ermintrude]

A vent won't really work as there isn't enough back pressure from shower to close it or it might work as valve works on floating rather than pressure? Normal Aav on top of pipe, once shower off it will open and allow air in and pipe and head to fully drain?

 

[Sammyt]

The trouble is you could fit something in the loft, but the water dribbling is in the shower head, so won't stop it. A small check valve fitted into the inlet of the shower head might help. ( but don't quote me on that)
Toolstation > Taps & Showers > Shower Valves > Shower Check Valve

thanks for the reply. the shower processor is in the loft, the outlet is a 1 meter run to the ceiling head, so I'm thinking of cutting in a tee with a devise like this just above, so when the shower is running with it's built in pump, no water will escape this devise, but when stopped will allow air in to let the shower head drain out fully...? Hope I've explain that correct

 

[Chalked]

A vent won't really work as there isn't enough back pressure from shower to close it or it might work as valve works on floating rather than pressure? Normal Aav on top of pipe, once shower off it will open and allow air in and pipe and head to fully drain?

Might stick open !

 

[Sammyt]

A vent won't really work as there isn't enough back pressure from shower to close it or it might work as valve works on floating rather than pressure? Normal Aav on top of pipe, once shower off it will open and allow air in and pipe and head to fully drain?

Does an AAV allow air in as well? If so that could work.

 

[Chalked]

Would this work?
Watts Industries - 1/2" MBSP - N36 Vacuum Relief Valve - EDP138457

 

[snowhead]

I remember there being a device fitted onto the bottom of commercial shower hoses around 30years ago when Legionella controls were first being implemented.

Effectively a non return valve which was held closed by the water pressure in the shower hose, but then released to drain the remaining water in the hose when the pressure in the hose dropped.

I've tried searching but can't find them, they may have been prohibitted by later Legionella controls.

 

[Sammyt]

Would this work?
Watts Industries - 1/2" MBSP - N36 Vacuum Relief Valve - EDP138457

that sounds like the kiddy!! Nice find thank you