Thetford flush overactive? solution

Techno

Techno

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Deceased RIP
Joined
Jul 28, 2010
Posts
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Location
Leeds the one up North
Funster No
12,905
MH
Rapido 7090F 3 litre 160
Exp
May 2010
Does your flush spill over the back? mine did after setting the pump to the optimum for the other outlets especially the shower.
This is my solution, some plastic profile from B&Q
CA_05011318475652-M.jpg

Some push pin rivets
CA_03281413233250-M.jpg

Job done! works a treat.
CA_03281413225812-M.jpg
 
Thanks I knew it couldn't just be mine.
I think it was about £3 for quite a long length as I used it for the additional kitchen work surface project previously.
Pushpin rivets from ebay ages ago could probably get white ones.
No adhesive used and it's a nice tight fit. To remove if necessary just push the pins right through and collect them up from the cassette housing below (cassette removed) They can be re used.
I think this problem is mainly due to Thetford's pipe only being 10mm being met by the vans 12 mm supply? thus a sudden restriction and pressure rise.
 
Thetford offer a restrictor for use where system pressure is high - it fits in the inlet pipe to the toilet.
 
Have you got a link? I could never find it

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Actually I think I prefer the strong flush
I just didn't want the floor washing too :Laughing:
 
if you cant find the restrictor, cut the feed pipe and fit a valve so you can control how much you reduce the pressure
 
Thanks I don't need it now job done ! All bar the paper work :Rofl1:
 
Had this problem also put a small dob of silicone on the outlet at the top part solved the problem I thought must just be mine wish I had posted
 
just thinking.....turn the pressure up and you've got a bidet in the van:Rofl1:

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Sorry Tony I meant I could never find it for sale anywhere
However I'm more than happy with my own solution as a strong flush is preferable and it is working perfect thanks:thumb:
 
Techno100 said:
Sorry Tony I meant I could never find it for sale anywhere
However I'm more than happy with my own solution as a strong flush is preferable and it is working perfect thanks:thumb:
Click to expand...

Yep - I like it too:Smile:
 
These are the rivets I had in my kit box from another job. Available in black white or clear

Broken Link Removed

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Interesting thread.......I've thought recently that our flusher was "under-active". Even pressing the blue button for longer made no difference at all..........we didn't have this problem in our previous van which was an Elddis.

I'm wondering if there might be a bit of grit reducing the flow somehow:RollEyes:



 
No one can call me a tight arse now I splashed out on the white rivets :Laughing: puns intended.
CA_04041415142332-M.jpg
 
Techno100 said:
Does your flush spill over the back? mine did [HI]after setting the pump to the optimum[/HI] for the other outlets especially the shower.
Click to expand...

I think I need to adjust pump on my MH or possibility the "expansion vessel" if it has one. I fiddled with it on my last MH but didn't seem to improve anthing. Did you post your experiences in tinkering with this together with a photo trail :Blush:

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Sorry and all that..

I don't like it .. it's a trap for bacteria .. and it looks unsightly, which of course is subjective..

better to have reduced the water pressure.. IMHO
 
MHVirgins said:
Interesting thread.......I've thought recently that our flusher was "under-active". Even pressing the blue button for longer made no difference at all..........we didn't have this problem in our previous van which was an Elddis.

I'm wondering if there might be a bit of grit reducing the flow somehow:RollEyes:
Click to expand...

Mine had issues and wouldn't flush err much (?) away

I pulled out the kahzi to install the Thetford electric ventilator kit and disconnected the water supply to do this. Once it was reinstalled it performed normally. An airlock perhaps?
 
Last edited:
ScotJimland said:
Sorry and all that..

I don't like it .. it's a trap for bacteria .. and it looks unsightly, which of course is subjective..

better to have reduced the water pressure.. IMHO
Click to expand...

With the toilet seat down it is not seen and the only water to contact it is the clean flush.
 
Looks fine to me. ALWAYS wash your hands!! :Laughing:
CA_04041417232108-M.jpg

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Techno100 said:
With the toilet seat down it is not seen and the only water to contact it is the clean flush.
Click to expand...


:thumb:Looks like you've made a really neat job of this........no pun intended though. We're "underflushing" at the moment, will check out Sidney's advice above and try to improve things.......

Bill
 
Sidney said:
I think I need to adjust pump on my MH or possibility the "expansion vessel" if it has one. I fiddled with it on my last MH but didn't seem to improve anthing. Did you post your experiences in tinkering with this together with a photo trail :Blush:
Click to expand...

Sorry for the delay David.
I tinkered with the pump cycling adjustment screw until I had a good flow. Basically increasing run time.
page 3
http://www.shurflo.com/files/RV-Ins...assic Pump - 911-352_L_2088-422-144 _444_.pdf
 
Feedback

After a few months and plenty of use I can report 100% success. Not a single drop of over spill nor the slightest indication of unhygienic deposits.
It still looks like day one.
Same picture unchanged.
CA_04041415142332-M.jpg
 
I need to get one fitted to me, the toilet flush ain't the problem

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