Mixer tap and water pressure

Submitted: Tuesday, Apr 14, 2009 at 16:03
ThreadID: 67829 Views:2883 Replies:5 FollowUps:1
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To all you handymen/plumbers

Have had a bit of a problem with the mixer tap in our Coromal.

Over Easter, we attached our water hose to the park tap and it kept popping off with too much pressure. Lo and behold next thing, we have water dripping inside the cupboard under the sink, and the mixer tap is also leaking.

Would it have just been coincidence, or should we have a "pressure reducing" thingie on our hose to stop this happening again?
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Reply By: Member No 1- Tuesday, Apr 14, 2009 at 16:12

Tuesday, Apr 14, 2009 at 16:12
if I recall, i think the requirements for the mixer tap I fitted to swmbo's kitchen asked for a pressure reducer if pressure was above such n such....but I read that after I had already fitted it ...why read the instructions if you dont need to?
AnswerID: 359518

Reply By: Dunco (NSW) - Tuesday, Apr 14, 2009 at 16:21

Tuesday, Apr 14, 2009 at 16:21
Mine also leaked under the cupboard, so I just tightened a few screws under there and no more probs


AnswerID: 359521

Reply By: Member - Graham H (QLD) - Tuesday, Apr 14, 2009 at 18:02

Tuesday, Apr 14, 2009 at 18:02
Most quality caravans have a pressure reducing valve installed at the factory.

Look just behind the hose inlet and it should be a thicker fitting and will have a sticker saying what it is on it.

Parks have wildly varying pressure and one of these is essential.




AnswerID: 359540

Follow Up By: Bunny - Tuesday, Apr 14, 2009 at 18:11

Tuesday, Apr 14, 2009 at 18:11
We have a pressure reducing valve which apparently is connected to the hot water system, but this attachment actually fits to the external hose just near the tap. Would the one near the hot water system cover both scenarios?
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FollowupID: 627482

Reply By: Member - Graham H (QLD) - Tuesday, Apr 14, 2009 at 18:27

Tuesday, Apr 14, 2009 at 18:27
Would think one immediately after the input to the van is best as it reduces all water pressure both cold, and hot before it gets into the hot water heater.

This in itself is good as too much pressure could damage the heater tank.

If your hose keeps popping off it probably needs a new O ring or a whole connector.
AnswerID: 359548

Reply By: Inkbandit79 - Tuesday, Apr 14, 2009 at 22:31

Tuesday, Apr 14, 2009 at 22:31
Being a plumber by trade i would recomend installing one on your main inlet to your van at say 500kpa (most new appliance's wont recomend a preasure over 600) and a cold water relief valve just before your connection to your hot water valve, preferiably after your isolating valve as when hot water heats up it expands and your isolating valve will bear the brunt of the preasure rise. Most plumbing supplies will be able to sell you a repair kit if all your o-rings are split,hope this helps
AnswerID: 359599

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