[Klean07]

I was changing mine about every 3 to 5 months. I have a 11 litre container. Its been 3 months exactly today but its still showing as 00. So how often does everyone change it?

[gary999]

if its still showing 000ppm why worry...im not using any
at mo comes out of ro under 10

[Mike #1]

Mine lasted about 10 weeks last time but i was running water through DI to fast , Just running through at a trickle now .

Takes about 6 hrs to fill static tank . Mike

[mikey]

i change  mine at    004 from the ro 400ltre tank in garden   transfer to van   comes out     ooo  at the brush

[Pro-Poler]

I have 2 11 litre resin tanks resin lasts 3 months

[SB Cleaning]

3-4 months ish

[dd]

I guess it depends on how much water you use and the tds of water.

As usage rates and working hours vary considerably difficult to compare with other people.

[Llaaww]

Try using this.

http://www.gardinerpolesystems.co.uk/Resin%20Calculator.htm

[home6442]

Once in almost 5 years.
R.O. takes the tds down to 5ppm so not much work for resin.

[Klean07]

Your lucky then to have it that low then!

[Michael Peterson]

i fyou want to save on resin and get your ro producing water nice and low like the guy above i recommend buying a booster pump from pure freedom, they really do increase the quality of the water coming out of the ro system and make water production at least twice as fast

[Klean07]

I have a Merlin at the moment but thinking of getting a ro next but not sure where I'd put it! Any ideas?

[Michael Peterson]

the merlin is fast but the water purity is gash, i use 650 liters a day, i use a 450gpd purefreedom and then a small resin bottle afterwards i put it on about 4 o clock (ish) and turn it off at 6 in the morning and my ibc is nearly full, im not using a booster pump at the mo, but defo get one (i broke mine

[Klean07]

So your ro is in your van then?

[Michael Peterson]

no mate i have it next to an ibc tank, and bring it inside if its going to freeze, i have a transfer pump inside the ibc and do it that way 10 mins every evening

[Mike #1]

An ro  or Merlin wastes far to much water I have a low tds thats why I use a 11 ltr Di , cant justify,wasting so much water and if I have forgot to fill static tank I can produce pure water fast if needed . Mike

[James archell]

When it stops producing water to the quality required.

[Klean07]

no mate i have it next to an ibc tank, and bring it inside if its going to freeze, i have a transfer pump inside the ibc and do it that way 10 mins every evening

I have two ibc tanks one from each gutter with a transfer pump. I may buy an ro and just use one ibc for rainwater.