[AuRavelling79]

I feel your pain, Gary!

OK, if you have a "Ro-man" type or copy of R/O you will have three chambers hanging down.

Looking at it, the one on your left has a kilo of resin in it if you want to polish your water before putting it in your van tank.

To change the resin, you unscrew the chamber and pull out the cylinder of old resin. Take off the top bits and pour out the resin. At the bottom is a little round flat sponge about the size of a biscuit which stops the resin beads getting in the water and blocking pipes and filters.

After a few years this splits or frays and you need to replace it.

Just cut one out of a household sponge - I used a scourer as the rough surface is stronger and goes face down in the bottom of the tube.

Then spoon your resin in, re-assemble, and jobs a good 'un.

I also buy 25 litres of resin but spoon it in every week or two as the TDS climbs past 005.

[rosskesava]

I didn't know that about the sponge. Amazing what you learn on CIU.

Who knows, perhaps Gardiners will bring out the worlds first spongeless DI soon or maybe Ionics will bring out the same at an incredible cost that does exactly the same thing.

[Tom White]

I didn't know that about the sponge.

I bet you don't know about soap too, you filthy urchin.

I've not used a sponge in years and all is well.

[koopmaster]

So you are going to pay for something plus postage when you
can look under your sink and find what you need.

If you are worried about using scissors im sure there is an adult
in the house who can help you.

H2o matey you are a suppliers wet dream
[/quote

LOL you actually made me laugh.  Good one.