Search the forum,

Discuss Why would closing the tub valve cause the shower to stop? in the USA area at PlumbersForums.net

E

Ed Dorrington

Hello,

I have an odd plumbing issue that I would like advice on. This is a new house construction, single story, with one bathroom. Hot water is provided by an instant-on heater. The water, both hot and cold, works fine in the kitchen and the bathroom sink. However, the tub/shower is acting very strangely.

If you turn on the water (either hot, cold, or a mix) and have the tub valve open, water comes out of both the tub faucet and the shower. If you close the tub valve, the water, of course, stops coming out of the tub faucet, but it also stops coming from the shower, instead of getting stronger. To be clear, it slows to an occasional drip from the shower, rather than stopping completely.

If, instead of closing the tub valve completely, you slowly close it part way, as expected, the shower gets stronger and stronger, up to the point where the valve is, say, about 75% closed, then it gets weaker and weaker, until it virtually stops when the valve is closed.

I live on a mountain top, and I don't know what the water pressure is here, though I don't think it's particularly high. Is this something that could be caused by low water pressure? Also, FYI, the flow from the kitchen and bathroom sink is about 2.1gpm cold and about 1.75gpm hot.

Thanks for any advice you have for this puzzling issue.
 
Ooh what mountain do you live at the top of?
 

Reply to Why would closing the tub valve cause the shower to stop? in the USA area at PlumbersForums.net

Similar plumbing topics

I have a plumber coming tomorrow to change a cartridge on a badly dripping tap on my bathroom mixer unit. There is no separate isolating valve for this tap so I'll have to close the stopcock. I tried closing it today but it won't go absolutely 100% closed and there is still a very slight flow...
Replies
1
Views
228
Hi All I have a leak coming from within my Mira Elite QT shower. It seems to be flowing from behind the switching Control. Any ideas what could be causing this leak. Already Changed the Pump Elbow as one of the clips had popped which was causing a second small leak, Any idea? Is it time to buy...
Replies
0
Views
220
Hi all I'm hoping someone can shine a light on this for me Since our stop tap on the pavement has now been filled with sand for whatever reason, we are relying on our property fitted stopcock (this is outside on our garage wall) Unfortunately turning this to the closed position only reduces...
Replies
3
Views
221
Hi, Can anyone advise as to why the cold water to my bathroom keeps airlocking? This originally happened about 12 months ago and has happened 3-4 times since. It’s an upstairs bathroom, fed from a tank in the attic. The tank is about 8 Meters away and feeds a bath, sink and toilet. The tank...
Replies
9
Views
296
The fittings below are for a mixer bar attached to a self contained shower. i.e not a wall. The attaching screws have snapped. I could get two new brackets, dismantle that existing one and start again or I could try and re attach via those screws, removing the broken ones from the plate and wall...
Replies
1
Views
161
Creating content since 2001. Untold Media.

Newest Plumbing Threads

Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock