[Richy L]

I am using a twin DI at the moment. But im going through a bag every two months making 1800 litres a month.
Would it be better to go RO?

[Matt.]

I would, I don't do a major amount of wfp prob 1000L a week but it can vary, I use a merlin and I only bought 2 bags of sand in last year.

[Smudger]

Yes defo an RO

3 options - a didy 300/400 gpd that you can leave to trickle into an ibc tank as the name suggests they produce 300 or 400 US gallons every 24 hrs but cheap to buy and get good results

A merlin 700 + gallons per day easy, more if using a booster pump, reasonable cheap but wasteful compared to the others great if not on a meter.

Or a 4040 - fastest of them all, industrial RO will last years but expensive again best with a booster pump

Darran

[Richy L]

Thanks.

How about something like this....(the 100gpd one)?
http://www.ebay.co.uk/itm/4-Stage-RO-DI-Reverse-Osmosis-Filter-Tropical-and-Marine-Fish-50-75-100-GPD-/161434185211?pt=UK_Pet_Supplies_Fish&var=&hash=item25963a2dfb

I only need 200 litres a day 3 days a week.

Would this work?
I need to keep it outdoors too. will it get damaged in freezing temperatures?


I only need 150-200 litres a day so this would be enough right? just feed it to an ibc?

[KLEENAWAY]

Thanks.

How about something like this....(the 100gpd one)?
http://www.ebay.co.uk/itm/4-Stage-RO-DI-Reverse-Osmosis-Filter-Tropical-and-Marine-Fish-50-75-100-GPD-/161434185211?pt=UK_Pet_Supplies_Fish&var=&hash=item25963a2dfb

I only need 200 litres a day 3 days a week.

Would this work?
I need to keep it outdoors too. will it get damaged in freezing temperatures?


I only need 150-200 litres a day so this would be enough right? just feed it to an ibc?

Richy dont mess about with one of them mate, it will literally drip pure water. They say 100gpd (US gallons not english) but you will never get that, thats if the water is warm and high pressure and even then you wont get that. Its like when car maker state a stupidly high mpg that you wont get

Smudgers right, with them, you get what you pay for. I used to have and ibc take constantly filling with a 300gpd ro using a few hundred per day. Leaving the RO outside isnt ideal unless you can keep it insulated as frost with damage the casing and the RO membrane.

Danny

[Richy L]

Something like this (the 300gpd one)?
http://www.ebay.co.uk/itm/MULTI-LISTING-50-100-150-200-300gpd-REVERSE-OSMOSIS-RO-UNIT-WITH-DI-CHAMBER-/251382889484?pt=LH_DefaultDomain_3&var=&hash=item3a87967c0c


How much water do you think it will use a day (including waste water) and how much pure water will it make?

[KLEENAWAY]

Something like this (the 300gpd one)?
http://www.ebay.co.uk/itm/MULTI-LISTING-50-100-150-200-300gpd-REVERSE-OSMOSIS-RO-UNIT-WITH-DI-CHAMBER-/251382889484?pt=LH_DefaultDomain_3&var=&hash=item3a87967c0c


How much water do you think it will use a day (including waste water) and how much pure water will it make?

I cant comment on them mate as iv never used them.

This is the one i used to have
http://www.ebay.co.uk/itm/300GPD-RO-system-FREE-FITTINGS-KIT-WFP-Reverse-Osmosis-Window-cleaning-/180878550878?pt=UK_HomeGarden_CLV_Cleaning_CA&hash=item2a1d33a75e

It all depends on your TDS level and your tap pressure. If you have decent pressure it will use less water as the membrane will work at its optimum level. If you have a low TDS level then you will use less water because you can out more water into you tank rather than down the waste pipe.

Danny

[Amazin]

is RO system significantly cheaper than a DI system? If so, roughly how much?