Connecting Mains pressure to Coromal SEKA 535 Pioneer SL

Submitted: Tuesday, Oct 13, 2020 at 13:38
ThreadID: 140634 Views:609 Replies:3 FollowUps:1
I have owned this van for 5 years or more and never connected it to mains pressure.

We are going to a park next week and I thought I should make sure it works.

There is an inwards connection with what I presume a one way valve.
Then an outlet tap. Then a line which goes into the van.

I connected the hose and got nothing at the outlet tap. So I presume there is no water getting through the one way valve. But I get water from the tap when the pump is on.

Which raised a whole lot more questions.

Does the water connection only fill the water tank from which the pump pressurizes the system? .
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Reply By: Member - Jim - Tuesday, Oct 13, 2020 at 15:13

Tuesday, Oct 13, 2020 at 15:13
Humphrey, you will probably find that the non return valve (one way valve) is siezed/blocked.

You can dismantle it and clean it to see if will work or go to a plumbing supplies store and replace it.
They are not expensive.

Normally when connected to mains pressure it does not fill the tanks automatically.

Cheers,
Jim

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AnswerID: 633720

Follow Up By: Humphrey57 - Tuesday, Oct 13, 2020 at 16:18

Tuesday, Oct 13, 2020 at 16:18
Thanks Jim.

I felt a little foolish asking the question.

That answers my question precisely. Better to ask before I start pulling stuff apart.



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FollowupID: 910802

Reply By: Member - Allan L2 - Wednesday, Oct 14, 2020 at 08:10

Wednesday, Oct 14, 2020 at 08:10
Most vans also have a PLV (pressure limiting valve ). Some have this incorporated with the one way valve & other located elsewhere.
Cheers,
AnswerID: 633728

Reply By: Peter_n_Margaret - Wednesday, Oct 14, 2020 at 08:52

Wednesday, Oct 14, 2020 at 08:52
My advise is don't connect to mains, just fill the tanks as required.
The slightest leak of the PCV will impose higher pressures to the van water system. You will never notice and that can have bad long term consequences for the HWS in particular.
Cheers,
Peter
OKA196 motorhome
AnswerID: 633729

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