"Dennis" wrote in message
...
Opinion wanted:

75 gallon tank
Rena Filstar xP2 canister filter

Would the tank filtration benefit with two intakes (by adding a T
connector) ??

Would this cause problems with the canister filter ??

It would reduce the drag coefficient slightly, giving a net increase in
flow. I don't see it causing any trouble with the canister provided both
were filled with water (getting all the air out of both might be a
challenge). The extra connections (the T) outside the tank are a
weakness (a system is as water-tight as the number of connections). The
flow will initially be equal (assuming they are the same length of hose
from the T and at the same depth in the tank), but this will quickly
change as debris collects at the intake grid. A difference in flow
should have no effect on the system's operation. If the intent is to
better circulate the water, then this works, to a diminishing degree as
they clog. It provides a nice level of redundancy for intake clogging
stopping the filter.

That's how I see it happening.
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