5 Stage RO/DI system

[MarlinHooker]

I have the 5 stage RO/DI Reefkeeper system from Air, Water & Ice

If I remember correctly the system is supposed to be able to produce 75 gals/day which is slightly more than about 3 gals/hr. Anyone know about how much waste water (RO only) the systems produces per hour?

I'm moving all my water systems (RO/DI filter, ATO tank, seawater tank) into a new fish room in my house that only has an input water source nearby. Since there is no drain to dump waste water to I need to dump into a second tank and wanted to figure out how quickly that tank would fill ...

thx

 

[DDon]

Waste to product water ratio for that unit should be about 3:1. So you are looking at waste water flow rate of 9 gal/hr

 

[MarlinHooker]

great, thx!

 

[azjohnny]

It depends on the quality of the feed water, if its abnormally hard or high in TDS I would go with a 4/1 ratio

 

[Lilmatty5dimes]

Water pressure also will determine the waste water ratio. A friend has a booster pump and he produces 4g per hour and it's a 75g per hour unit. And his waste is 2:1