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Topic: Shower

matty8887

06/7/2015 at 1:47pm
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Hi all,

First time poster here. I have searched around for an answer to no avail.

I have an ace supreme twinstar 26ft caravan.

The problem im having is to do with the shower flow/pressure. Im a plumber by trade so ive tried everything i can think. The pressure out the shower is pretty rubbish, i litterally have to stand up against the wall to get under the water as the pressure is not enough to throw the water out towards me.

The sink and basin next to the shower is really good pressure and flow. Ive had the hot and cold pipes to the shower disconnected and there is plenty of pressure. If i connect back upto the shower with a head or hose the pressure is very weak again. I cannot see a blockage in the shower itself but it is all enclosed so its hard to see. Do caravan showers restrict the pressure coming out of the shower?

I dont want to buy another shower to find out it has the same problem as its non refundable.

The shower is a reich single lever twist tap which has a microswitch inside. My caravan has on onboard water tank with inline pump. All other taps are excellent pressure.

Thanks all.

navver

06/7/2015 at 4:27pm
Location: West country
Outfit: Mondeo

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It sounds as if the microswitch in the shower tap might have failed. The basin tap will turn the pump on and the residual pressure from this will give a feeble litle flow from the shower.

Does the pump run when you turn the shower on? You should be able to hear it.

Modern caravans have a pressure switch system so only one pressure switch operates the pump no matter which tap is switched on. You can convert yours to this if you wish.

matty8887

06/7/2015 at 5:10pm
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Hi,

Yes my shower runs when i turn it on by itself its just poor pressure. Its not the head height either as i put the shower to the floor and its still the same.

Just wondered if it were a blockage or reducer in the shower.

DaveS1

06/7/2015 at 6:10pm
Location: Hatfield Peverel Essex
Outfit: Ace Supreme Twinstar Disco 3

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Hi Matty.
I have the same van and the shower is wonderful so it is not the set up at fault.
There is no microswitch involved, the system is pressurised by the onboard pump as you will know.
Assuming that you have removed the flexible hose and there is still no pressure then it surely can only be a kink in the pipes which run behind the bed headboard and seem to be inaccessible or a blockage in the tap itself.
You can remove the tap unit to access the pipes behind. I can only suggest you do that and try flushing the system through. Careful though otherwise you'll have water everywhere!
Good luck
Daves1

matty8887

06/7/2015 at 6:41pm
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Hi dave,

Its not a pressurised system it is deffo microswitched. When i disconnect the hot and cold from the shower i used the microswitch on the shower to test the pipe work was flowing ok and it was just fine.

My van is the 2004 model and all taps have microswitches. But as i say the 2 other taps have great pressure.

Thanks

Matt

navver

06/7/2015 at 11:18pm
Location: West country
Outfit: Mondeo

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The question I asked was "Does the pump run when you turn the shower on". If yes the micro switch is OK if not it's the micro switch or wiring faulty.

DaveS1

07/7/2015 at 6:35am
Location: Hatfield Peverel Essex
Outfit: Ace Supreme Twinstar Disco 3

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Sorry for duff info. Mine is pressurised.
Daves1

matty8887

07/7/2015 at 8:08am
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Yes the shower operates when it is switched on so its not the microswitch. I think i will just have to change the shower.

tango55

07/7/2015 at 10:18am
Location: Lichfield
Outfit: Coachman Amara 450

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Limescale in the shower head could possibly reduce the water flow. If you need to treat the water for limescale then Truma Aquastar 1+2 is the product to use as I found a difference when I did mine 3 years ago. Just a suggestion that's all.

matty8887

07/7/2015 at 10:25am
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Hi,

Thanks for that but ive run the shower without head and hose, its still poor flow.

Maybe the waterways within the shower are small and blocked with limescale?

tango55

07/7/2015 at 11:20am
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I don't think limescale clings to plastic actually which is what the water piping is made from.
I think it only attaches to metal components which I thought maybe in the shower head itself but not absolutely sure on that.

albee

07/7/2015 at 5:17pm
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Hi, you say you have an in line pump what sort of pump is it? is it the original pump? there are a variety of pumps with different flow rates. you may just need a stronger pump capable of lifting the water to the greater height of the shower head. It is possible to increase water pressure by fitting an extra inline pump in the main water pipe just after existing pump

devil99qa

27/7/2015 at 7:29pm
Location: Swansea
Outfit: 2017 Benimar Mileo

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No expert on the subject, tell me if I am mad! Could you test the flow by disconnecting a pipe leading to the shower and use a hose under house pressure to test the flow for a short time. I do know (which is obvious to me as a novice) that the pressure will be higher, but if the flow increases it will prove no blockage or obstruction! then you could try the micro switch. Also what checks have you performed? I ask as a novice to consider if I get the problem. I replaced my shower head from a 99p store hose and it improved flow, which was ok to begin with. i'll be Interested in your reply or thoughts!

-------------
Paul

dawnstar

09/8/2015 at 7:18pm
Location: Somerset
Outfit: 1996 Award Dawnstar

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Sounds like you might have a bad micro switch which makes with a high resistance hence poor pump performance due to low voltage supplied to pump. Try shorting the micro switch wires together.

-------------
Mike

Explorer 482

09/8/2015 at 9:09pm
Location: Wirral
Outfit: Explore group Crown 482

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Hi,If you are certain the taps have micro switches you could try turning on any of the other taps to pressurise the system and see if the shower improves, if not it is probably a blocked mixing valve.

Hope it helps.
Roy

Explorer 482

09/8/2015 at 9:19pm
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Hi Matty, I forgot to say that if it does improve it could be the micro switch and not the shower! you can tell im new to this.

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