RO/DI flow restrictor sizing

[duncangweller]

Hi All,

I'm starting to get my tank set up again and I'm just replacing the parts for my RO system. I'm going to purchase another 75gpd membrane, but looking at my old parts, I have both a 550ml/min flow restrictor and a 400ml/min one.

I'm finding contrasting info regarding what size it should be. BRS says 550ml, but I can't find one anywhere in Canada. Some other sites say a 400 ish one will cut it.

If someone can tell me what they have on theirs, and whether one of the offerings from J&L will cut it at 500ml or 420ml so I haven't got to find one online, it would be greatly appreciated.

Thank you muchly,
Dunc