paul alan

  • Posts: 1683
450 gpd ro unit issue
« on: July 11, 2018, 08:32:09 am »
I have one of them 450 gpd (3x150 gpd membranes) and I put in new membranes last night.

Since doing that the unit does not flush now when I turn the valve on to flush, also the ppm's are rising.

Any ideas?

combat1

  • Posts: 887
Re: 450 gpd ro unit issue
« Reply #1 on: July 11, 2018, 08:54:49 am »
Theres a good guide on bulk reef supply.
Check tubing connected back correctly, run for an hour as normal, not backflushing to clear bits off the membrane.
Also it’s recommended to change the flow restrictor valve at this time too.
I also change pre filters and the resin in my 10’’ canister so everything is new at the same time.
Seems to work ok.
Hope this helps.

paul alan

  • Posts: 1683
Re: 450 gpd ro unit issue
« Reply #2 on: July 11, 2018, 06:06:19 pm »
Theres a good guide on bulk reef supply.
Check tubing connected back correctly, run for an hour as normal, not backflushing to clear bits off the membrane.
Also it’s recommended to change the flow restrictor valve at this time too.
I also change pre filters and the resin in my 10’’ canister so everything is new at the same time.
Seems to work ok.
Hope this helps.
[/quote

Cheers combat.


Have sorted it now I crossed 2 tubes over but couldnt see it last night, was out there till 10pm.


I have changed all the filters as everyhting isall frsh and clean now, happy days are here again!




combat1

  • Posts: 887
Re: 450 gpd ro unit issue
« Reply #3 on: July 12, 2018, 04:04:19 pm »
Done that myself mate!
Had to get the guy from osmotics to email me a diagram!
Glad you sorted it.