How to help ro/di last longer

[60gallonrimlessYA]

What can i do to help my ro/di last longer. I have the icecap 75gpd and have only had a couple months and it went from 7ppm last night to 9ppm 14 hours later. Plus does the tds being higher make salinity go up

 

[KrisReef]

Use the filter less often to slow the resin depletion.
The salinity may technically be slightly elevated but the difference is negligible (not practically measurable) between zero and ten ppm.

Sometimes the resin is not packed very tightly and the water flows around it instead of through the resin. Adding a little resin to the cartridge, or tilting the unit to force the water to pass through the resin may improve your situation? At some point the resin is spent and it cannot bind additional ions and it needs to be changed. The amount it can bind is fixed so once it has absorbed the max ions the speed of the water flow will not impact the reaction and no more ions will be removed.

 

[KStatefan]

What went from 7 -9 tds?

Maintain sediment filter so pressure does not lower to your membrane

Maintain carbon filter so chlorine breakthru does not damage your membrane.

 

[90's reefer]

BRS has 75g membranes that you can piggy back onto existing units.

Not familiar with ice cap units.
Anyway what happens is you get less waste discharge and your membranes last longer plus it produces 150g's of water in the same amount of time.

You system should be zero out of the di resin bed. If not it needs to be replaced. I always replace carbon and sediment filter at the same time as they are fairly cheap.

What is the reading out of the membrane. It should be 1-2 then the resin brings it to zero.
If you dont have a handheld tds meter to cross reference then replace all when you get a 1 out if the di resin. I can go to 3 on the meter before its actually 1 on my calibated handheld.

 

[Fish Styx]

Make larger batches less frequently. If you are only making, say 5 - 10 gallons at a time, your membranes will fall victim to creep and you will burn through them faster. The result will leave more gunk to bind to your resin, and it will deplete at an accelerated pace.

 

[90's reefer]

Make larger bathes less frequently. If you are only making, say 5 - 10 gallons at a time, your membranes will fall victim to creep and you will burn through them faster. The result will leave more gunk to bind to your resin, and it will deplete at an accelerated pace.

Yes. If you can find the room its the best way.
I have a 250g tote. My unit has a 75gpd and a 100gpd piggy backed.
It took 3 days to fill it with the 75 and 1.5 days with both. It also reduces waste with 2 membranes.

 

[Fish Styx]

Yes. If you can find the room its the best way.
I have a 250g tote. My unit has a 75gpd and a 100gpd piggy backed.
It took 3 days to fill it with the 75 and 1.5 days with both. It also reduces waste with 2 membranes.

Yeah, I run a 2nd membrane too. It's most definitely the way to go, IMO.

 

[danielankeny]

What can i do to help my ro/di last longer. I have the icecap 75gpd and have only had a couple months and it went from 7ppm last night to 9ppm 14 hours later. Plus does the tds being higher make salinity go up

In addition to adding a second ro filter, The BRS videos also highly suggest having water supply driving pressure >40-50 psi with 80-90psi yielding best efficiency. I think they have a BRS investigates video on this.

 

[90's reefer]

In addition to adding a second ro filter, The BRS videos also highly suggest having water supply driving pressure >40-50 psi with 80-90psi yielding best efficiency. I think they have a BRS investigates video on this.

Yes my pressure is about 65psi from the tap.

 

[60gallonrimlessYA]

Yeah, I run a 2nd membrane too. It's most definitely the way to go, IMO.

Can you show me your setup and explain please

 

[Fish Styx]

Can you show me your setup and explain please

I have company over the house at the moment, but will do it for you tomorrow.

 

[topjimmy]

Recharge the resin