I currently have a 180 gal DT, 100 gal sump, 30 gal frag tank and 20 gal refugium plumbed together in my basement. Turnover in the DT is roughly 1100 gph.
I want to plumb in a 75 gal tank upstairs. This will require about 20' of vertical pressure that I don't currently have. Desired turnover in the upstairs, 75 gal tank will be low, roughly 250 gph.
When using online head pressure calculators, do I use the desired flow in the upstairs tank (250 gph) or the downstairs tank (1100 gph)? The larger tank is downstairs so minimal vertical head.
I've tried it both ways and it makes a significant difference in which return pump I have to buy.
TIA.
I want to plumb in a 75 gal tank upstairs. This will require about 20' of vertical pressure that I don't currently have. Desired turnover in the upstairs, 75 gal tank will be low, roughly 250 gph.
When using online head pressure calculators, do I use the desired flow in the upstairs tank (250 gph) or the downstairs tank (1100 gph)? The larger tank is downstairs so minimal vertical head.
I've tried it both ways and it makes a significant difference in which return pump I have to buy.
TIA.