[Lukey32]

Hi Guys

I have a 650 litre static tank which takes 5 hours to fill!!!
I also have a solenoid connected up to shut off the flow when tank is full.

I have heard of people filling the same size tank as me in roughly an hour with a booster pump!

1. Is this true in terms of time to fill?
2. Can anyone recommend a pump to use from garden hose?
3. Do I need a special booster pump due to solenoid valve shut off??  To stop burn out,etc

Cheers guys, look forward to your replies I am wasting alot of water and changing resin and filters every 2 months

[Don Kee]

I think someones telling you porkies with the hour fill up, unless they have a couple of 4040's...?

What R.O do you have?
If its a static setup, does it matter that it takes 5 hours to fill..?(it's full by the time you get back from a days work..?)
What filters are you actually changing every 2months?(assuming pre filters?)
Whats your ingoing & outgoing TDS..?
Whats your water pressure?(get a gauge if you dont have one, they're cheap)

[Lukey32]

Hi Don

Not sure what the last RO unit was but sure it was just a standard 40.
It is static which works really well. Just concerned about the amount of water going down the drain.
I am changing particle, carbon and the resin every 2 to 2 1/2 months
Ingoing TDS was 275
Outgoing is 000 but was 025
Not sure about water pressure but it is ok but not as strong as my previous house. I have seen the pressure guages on ebay, might get one so I know exactly

[Lukey32]

My PSI is 40

[duncan h]

my 250 ltr tank takes 20 mins to fill. All I use is a 25 ltr DI

[Don Kee]

Whats the TDS before Resin mate, and also is it a HF4 or HF5?(low pressure membrane or high pressure)

If you have a HF4 you'll need a booster pump as they'll need approx 60/70psi +
This will increase your production & lower your outfoing TDS (meaning you use less resin)

Check this out if you need a booster- https://www.machinemart.co.uk/shop/product/details/cbm240e-1in-multi-stage-230v-booster-pum

How much water do you produce a week? Changing prefilters every 2/3 months is about normal, chsnging resin depends in how big your D.I is...?(i've got a 25litre D.I, resin last about a year producing around 2,500-3,000 litres a week with ingoing at 6)

Also have you got a gate valve on your r.o?(tap on waste?)

Adjust it to your preference...
Lower tds but get more waste and slower production
Higher tds but faster production, less waste

[Don Kee]

my 250 ltr tank takes 20 mins to fill. All I use is a 25 ltr DI

My sub pump is faster than that

[duncan h]

my 250 ltr tank takes 20 mins to fill. All I use is a 25 ltr DI

My sub pump is faster than that

Takes a bit longer in the winter. Don't know why because the mains pressure is higher in the winter

[Don Kee]

Wish i could be D.I only, would make life easier...

Colder weather means thicker water means more pressure needed to move it about...
I'd still take that if i could be D.I only!