[johnny bravo]

ive just got a 200 ro system from collins water ,   my kitchen tap has good pressure,  thw pure is trickling out, waste is coming out faster, id say 50-15% difference,   has anybody with experience timed how long to fill a 25litre drum. im timing it and let you know how long it takes to find out if its an ok set-up., has anybody got one from collins water products. i didnt think it would be so slow to produce got to thinking twice about change to wfp.  readings from ro   =  waste = 148,      pure = 12, i was expecting a pure reading of around  05 - 10. without using di.

[rg1]

See this

http://www.cleanitup.co.uk/smf/index.php?topic=148879.0

[steven ainger]

Imo,
Most of these cheaper ro's, that are advertised for window cleaning purposes,
Are not fit for the job.
Every week theres threads on here saying the same thing as above.

[Window Washers]

totally agree with the above post.

a 200 gpd will be slow it will also waste a lot of water, I would be interested in knowing how long it takes to fill a 25l drum.

if you want something that is fast get a 4040 you will never ever go back after trust me.

a Mate of mine has his on all the time filling and thats only in a water butt they are a domestic water filter

[gto]

my old 200gpd would have taken 2 hours for 25l

[Window Washers]

my old 200gpd would have taken 2 hours for 25l

[gto]

thats why i got rid and bought a new one.

i did what all the other newbies did and tried to save money with a small RO.

[Window Washers]

thats why i got rid and bought a new one.

i did what all the other newbies did and tried to save money with a small RO.

when I started I went for the fastest as I know what I am like, I would have pulled my hair out watching that fill

[johnny bravo]

25 litre drum, = 3 hours . this is a bit off putting, i havent got much hair to pull out.  reading 15    havent used small 10 inch di vessel yet,   i thought my ro only reading would be 05 - 10 tds.    with my tap water being only 148.reading. i wonder if i have done the right thing trying to change over to wfp.

[dd]

It is OK if you are filling and IBC on a static system. I use a 300gpd unit and it works well with not too much waste. Production rate is slow but it keeps up with demand.

The membranes will probably perform better after they have been used a good few hours. You probably need water pressure minimum 50psi for unit to work efficiently.

For faster production rate and less waste add a third 100gpd membrane to unit.

[steven ainger]

and a booster pump

[dd]

You should not need a booster pump if your psi is 50 or above. My unit works well without and I get tds around 003 with 200 ingoing.

[Mike #1]

mine takes about 45 mins to fill a 25 ltr container . mike

[steven ainger]

You should not need a booster pump if your psi is 50 or above. My unit works well without and I get tds around 003 with 200 ingoing.

with a small booster pump, running at 85 psi, my tap water today is 365 tds and comes out the ro at 4,
this is with a 450 gpd ro-man.

[andyM]

25 litre drum, = 3 hours . this is a bit off putting, i havent got much hair to pull out.  reading 15    havent used small 10 inch di vessel yet,   i thought my ro only reading would be 05 - 10 tds.    with my tap water being only 148.reading. i wonder if i have done the right thing trying to change over to wfp.

This is the reason I recommend getting at least a 300 GPD RO but 400+ would be better.
Most WFP'ers know this from experience but some of the newbies buy these cheap RO's and end up disappointed simply because they don't listen to the advice.  
You will be lucky to get 30 ltrs per hour out of that RO in peak conditions.

[johnny bravo]

30 litres an hour would be heaven at the moment. ive heard testing your tap pressure by filling a 25litre drum up in so many seconds,     does anybody recall this method,  or do you know another way to check tap pressure manually.   how much would a 4040 cost., compared to 2-300 ro.

[Window Washers]

30 litres an hour would be heaven at the moment. ive heard testing your tap pressure by filling a 25litre drum up in so many seconds,     does anybody recall this method,  or do you know another way to check tap pressure manually.   how much would a 4040 cost., compared to 2-300 ro.

you need a pressure gauge to check the pressure, filling a 1 litre jug and timing it will give you the flow per min so 1 litre per min = 60l an hour.

Booster pumps up the pressure the water hits the membrane but the flow needs to be good to produce fast.

I dont have a clue now what they cost but  I guess about £450/550 for just an ro.
you may find a second hand one cheaper as there seems a lot of start ups are stopping as the magic water does not work for them.

[johnny bravo]

how does an extra membrane make water come out pure quicker, dont want to start spending much again, thought i had set up sorted, i will test water flow after measure litres in a drum  with tap flow  then with hosepipe fitted, to see difference, to get 200 litres this way would take 24 hours,   havent got a alround waterflow, have to fill overnight in kitchen then take 210 barrel out in morning.

[johnny bravo]

water pressure when hose is on =  10litres @ 45 seconds.  = around 13 + half litre per minute, is this low for my 200 ro.      is this why its taking 3 hours to fill up a 25 litre drum up.       does reading show if i need a booster pump to get a quicker pure water flow for filling  barrell up.   

[alanwilson]

Flow - pouring water out of a bucket, really fast but no pressure.

Pressure - put finger over tap and try to stop flow, the harder the water pushes against you the more pressure you have.

Get a pump on it as 13ltr a min from 15mm piping equates to roughly 40 psi