Ro flushing help

[Den]

These are my bypass valve to stop tds creep 

RO outlet one valve stays open direct to Di vessel or I can shut that and open the other then let the higher tds from membrane run for a minute or two into the blue hose pipe with the permanent RO waste.

 

[Dave B]

Neater than my setup mate

You can just about see one of my taps behind the water butt

I have a y splitter behind it with 2 taps

1 has 6" of tube coming out of it and pours straight onto the gravel while the tds spike is going

The other connects to the di by being connected to the yellow hose 

 

[spruce]

The granulated carbon one (gac) does the same job as the carbon block so not needed although they wouldn't last long on their own compared to the block

The sediment filter is unnecessary for me as my water doesn't have any..i can use the same sediment filter for 6 months and it still won't change colour as it is not dirty

I am on my last couple of carbon blocks and then will be replacing it with a fibredyne sediment/carbon all in 1 filter which is about 12 quid off Gardiners but lasts a lot longer and won't restrict flow as much

I don't know if i am right but i am sure if you use 1 pre filter instead of 3 the water must go through to the membranes quicker as not so much pressure needed to force it through 3 filters

It seems quicker with just the 1

@spruce what do you think?

Could well be as each filter will restrict the flow of water to some extent. That would be more evident on a larger r/o that the smaller ones.