300 gpd ro help

[abs]

Hi , I've just bought this second hand 300 gpd ro by streamline has anyone got any clue on these how it's back washed or even set ? It's working and producing 5 ppm water but the waste is huge ,they is a Allen key to turn to slow down the waste but if I do that what damage will that do if any to the membrane? I know it's not a lot to go sorry /emoticons/sad.png

 

[Smurf]

Does it look like this one?

If so this gives you instructions how it works

[media]

[/media]

 

[abs]

Thanks for that @Smurf the unit I've got has just the 1 membrane it was originally on a little frame and it's also got a water pressure gauge on the front of it ,I'll try and out some pictures up at some

 

[abs]

http://hughcrane.co.uk/machine-range-1/pure-water-window-cleaning/streamline-filterplus-300-ro-filter-system.html

 

[abs]

This is what I have ,I haven't a clue how to back wash it and they Isn't and taps or anything ??

 

[gto]

have you measure the output, the waste may seem very high to you but it might be right.

get a jug and time 1L for both the pure and waste out put.

it should be around 2-1, or the worst i had was 4-1, thats waste to pure production

 

[abs]

have you measure the output, the waste may seem very high to you but it might be right.
get a jug and time 1L for both the pure and waste out put.

it should be around 2-1, or the worst i had was 4-1, thats waste to pure production

Thanks m8

I have a little device on the waste hose that I can tighten a little Allen key up on,this slows down the waste but should this speed up the pure too and will slowing the waste damage the membrane

 

[gto]

the pure should speed up a bit.

with a 300gpd i think the best you will get is around 30L per hour

 

[abs]

the pure should speed up a bit.with a 300gpd i think the best you will get is around 30L per hour

Thanks I'd be well happy if I can achieve that,just need to figure out back washing as they isn't any taps or anything like that on it ?

 

[Smurf]

Best you contact streamline directly first instead of messing with it.

Thanks m8I have a little device on the waste hose that I can tighten a little Allen key up on,this slows down the waste but should this speed up the pure too and will slowing the waste damage the membrane

 

[abs]

It's created 12 ltrs of pure in a hour ,rubbish but faster than my old 100gpd

 

[Smurf]

Yep those small type ro's are painfully slow that is why most eventually end up with a 4040 ro.

 

[abs]

Yep those small type ro's are painfully slow that is why most eventually end up with a 4040 ro.

Agree and that's my next upgrade for sure

 

[Smurf]

I just checked the production rate on my old pf 300 gpm ro and is running at 30 litres an hour so takes a wee bit of time to fill one of my 1000 ltr ibc tanks.

 

[SolarPanelCleaning]

I've got a titchy ro, does about 12/hr. Seems plenty. Cheap too. How much water do you need? Having space to store it helps.

 

[Smurf]

Depends what I'm doing but can get through roughly 6,000 litres a month of pure. That just working maybe 12 days a month if I can be arsed that is.

I find 1000 litre ibc's are ideal to use as holding tanks to store large volums of pure when using a static ro/di system. For me they don't seem to take up much space either as the footprint of the tanks are quite small and are also stackable too if need be.

 

[abs]

I can manage with 1200 ltr a week at the moment ,I've now condensed my work and squeezed it together day by day simply by getting rid of a few and working that little bit longer I've managed to let a full week to myself a month