Reverse Osmosis Reject Water.

[cbchevy4x4]

Okay thoughts, I have a wash world razor edge with the RO Recycle kit, Reject water from RO system is sent to storage and pumped into the razor tank on demand. System works pretty slick and I get to use the water twice and only pay for sewer once. Now Before my RO are my water softeners (2) and my carbon tank. The carbon tank regenerates just like my water softeners do but doesnt have to use any brine obviously. Would anybody see any negative in taking that discharge water as well and using it in the RO Recycle kit?

 

[cantbreak80]

The purpose of a backwashing valve is to sufficiently reclassify the carbon media so that channeling is less likely to occur…commonly ~6.5 GPM for a constant 10-minutes.

Another benefit of a backwashing control valve is to eliminate small and broken carbon granules (fines) as they would be regularly backwashed out to drain. So, adding a sediment filter in the carbon filter’s drain to the reject tank will prevent carbon fines from entering the reclaimed water system.

A 3-valve drain system by-pass would be especially beneficial when the carbon media is replaced…otherwise the new media fines would quickly clog the sediment filter.

 

[cbchevy4x4]

The purpose of a backwashing valve is to sufficiently reclassify the carbon media so that channeling is less likely to occur…commonly ~6.5 GPM for a constant 10-minutes.

Another benefit of a backwashing control valve is to eliminate small and broken carbon granules (fines) as they would be regularly backwashed out to drain. So, adding a sediment filter in the carbon filter’s drain to the reject tank will prevent carbon fines from entering the reclaimed water system.

A 3-valve drain system by-pass would be especially beneficial when the carbon media is replaced…otherwise the new media fines would quickly clog the sediment filter.

You are on point with exactly what i was thinking, with the addition of a sediment filter and 3 valve pass system.

 

[I.B. Washincars]

I did it and it didn't cause any problems that I'm aware of, other than the water in the tank being darker every now and then (assuming after carbon filter regen). CB80's suggestion for a filter may not be a bad idea.

 

[Buckeye Hydro]

Carbon filters "backwash," softeners and certain other filters "regenerate." One or two steps in the multiple-step softener regeneration process are backwashing.

The backwash water from the carbon tank will contain carbon fines and captured particulates (typically 20 micron and larger). As long as that sediment doesn't bother you, you could use it. The carbon tank backwash water volume depends upon the carbon tank size: bigger tank = more carbon = higher flow backwash = higher volume (gallons) of backwash water.

Russ