Fluid Systems flow rates

[sapman]

Anybody ever use one of these membranes? I have an 8X40 in a 600gph unit, but can only get 400-450 gph even after professional cleaning. I understand these are a slower flowing membrane, but won't pass sugar. Just wondering about others' experience with these.

Thanks
Tim

[Thad Blaisdell]

I have never used these, but you have to remember that flow rates are based on a fluid temp much higher than the temp of your sap. This reduces the the amount of flow.

[Brent]

When I was playing with the General Electric Merlin ROs I found a spec sheet and it showed the flow rates at 40 degrees was only about 1/3 of the 70 degree rating. I guess that would vary a bit from each manufacturer or model but it gives you some background

[doocat]

TIm,

I have the same machine as you and get about the same flow rates. Fluid Systems are slow. We added a membrane this year and may contemplate swapping that mambrane if it does not keep up.

Craig

[sapman]

Craig, so which membrane are you putting in the second post?

[doocat]

I'm not sure what the post we bought has in it right now, it is getting picked up as we speak. I will probably keep what is in there for this year anyway.

Craig