Toilet top tank Black sludge/blacteria

[scoobydiver]

How do people get rid of black deposits of sludge/gunk out of the top flush tank of your loo, I drained ours down the other day and removed the toilet roll holder/ pump access to find loads of black sludge like bacteria , how do you clean it out and with what. We have always used pink top flush fluid Tia

 

[Vanterrier]

You can buy a cleaner to dissolve the crud then flush it out with a low pressure hose via the water level tube or suck it out with another pump ( not the flush pump). Most caravan shops will have it.
K

 

[Vanterrier]

Sorry bad link. Will try again
K

 

[scoobydiver]

You can buy a cleaner to dissolve the crud then flush it out with a low pressure hose via the water level tube or suck it out with another pump ( not the flush pump). Most caravan shops will have it.
K

Thank you , any idea what it's called ?

 

[Deleted member 458]

I used to get that problem when using the pink flush additive. Suggest you use Elsan green toilet fluid when you've eventually got rid of the black bits.

 

[scoobydiver]

I used to get that problem when using the pink flush additive. Suggest you use Elsan green toilet fluid when you've eventually got rid of the black bits.

Have you not had the problem whilst using the green ?

 

[Deleted member 458]

No, no black bits at all since changing to Elsan green

 

[Vanterrier]

This is one of the products that cleans the flush tank of the black bits... there are others.

Fenwicks 1L Waste Pipe & Tank Cleaner for Holding Tanks Pipework Toilet Caravan | eBay

Fenwicks Waste Pipe and Tank Cleaner 1L. Fenwicks Waste Pipe and Tank Cleaner cleans and freshens waste holding tanks, toilet cassettes and pipe work. Cleans waste holding tanks, toilet cassettes and pipe work.

rover.ebay.com

K

 

[Minisorella]

I had exactly the same problem after using the pink stuff for a couple of years. I got it all cleaned out and stopped adding anything to the flush tank at all just plain water... haven't had a problem since. I regularly wipe the toilet bowl itself with Zoflora or antibac wipes. I figured if it's OK for a toilet flush tank at home to use plain water, why do we spend money on flush additives in the van?

 

[scoobydiver]

Thanks for the suggestions , I went with the cleaning fluid in the end , it was bad and had to do it twice but all good now thanks !

 

[scoobydiver]

Flush with a squirt of bleach then don't use any more additives....'pink equals black growths'

I had been using the pink for about 3 months when we noticed it !

 

[Deleted member 27]

The Black bits are Bio Film it’s an harmless bacteria the only way to contain it is to use a strong solution of bleach however once it’s occurred it will come back so treat again warm weather and still water is where it develops

Allf