Portapotti flush pump ineffective

[edocali]

Hi
I’ve left our Thetford Portapotti 335 clean and filled up with water (in the upper half !!!) and just a touch of bleach for more than a year (my fault).

On 1st reuse the hand pump hardly flushes out any water. After cleaning the outlet a bit, I got some water out but only with very vigorous pumping.
I’ve tried using descaler and white vinegar in the tank but with very limited improvement.
The unit is well sealed of course.

Any ideas to try restore it to easy flushing?

 

[secret lemonade drinker]

Probably clogged up with a black algae growth, try some toilet pink in the flush tank, it should clear out the hand pump and stop it coming back

 

[tedgina]

Probably clogged up with a black algae growth, try some toilet pink in the flush tank, it should clear out the hand pump and stop it coming back

Hi
I’ve left our Thetford Portapotti 335 clean and filled up with water (in the upper half !!!) and just a touch of bleach for more than a year (my fault).

On 1st reuse the hand pump hardly flushes out any water. After cleaning the outlet a bit, I got some water out but only with very vigorous pumping.
I’ve tried using descaler and white vinegar in the tank but with very limited improvement.
The unit is well sealed of course.

Any ideas to try restore it to easy flushing?

Bleach might have rotted the rubber on the pump seal .Fiamma brand is better as you can buy spares for the working parts.

 

[secret lemonade drinker]

Thetford spares listings should you need them

 

[edocali]

Bleach might have rotted the rubber on the pump seal .Fiamma brand is better as you can buy spares for the working parts.

Thanks, I think if that's the case I can't repair it, can I ?

 

[secret lemonade drinker]

Replace the pump mechanism?

92902111 Thetford Piston Pump for Porta Potti Qube 335 in White [Thetford Portable Toilet Spare Parts]

Thetford 92902111 SPP piston pump 35 in white is suitable for Qube Porta Potti 335 (2011 onwards). (92902111)

www.thethetfordcentre.co.uk

 

[edocali]

Replace the pump mechanism?

92902111 Thetford Piston Pump for Porta Potti Qube 335 in White [Thetford Portable Toilet Spare Parts]

Thetford 92902111 SPP piston pump 35 in white is suitable for Qube Porta Potti 335 (2011 onwards). (92902111)

www.thethetfordcentre.co.uk

Thanks ! Unfortunately it cost more than 50% of a new potti

 

[secret lemonade drinker]

Thanks ! Unfortunately it cost more than 50% of a new potti

In that case buy a new one, never use bleach, spray rubber seals with silicon oil every 6 months, put pink in top and green in bottom.

 

[kurienp]

Thanks ! Unfortunately it cost more than 50% of a new potti

Buy a new one, but don't throw away the bottom half of the old one. It is a good bit to have as a spare, especially if you're travelling long term as an extra for emergency replacement

 

[edocali]

I filled the tank with a water solution with discaler and vinegar, used the pump hard for a bit and left like that overnight.

I took the pump off

gave it a good clean and also used the garden hose to blow water through the pipe

reassembled and filled tank with theford pink liquid solution.

It does not work like when new, the pump seem to need really some good action to get some water out (especially to go all around the bowl) but it's not unusable. Given that we only use it occasionally I defer the replacement.
Won't use bleach again.