I'm a bit confused about the fitting sizes at various points along the way from the pump to the manifold. The recommended hose size seems to be 1/2", as that's what the MMI store sells. However, the fittings at the pump and the thermostat are 3/8", while the ones on the manifold are 1/2".
Should I be using various bushings and adapters to ensure 1/2" barbs all along the way? What size are the barbs at the diverter? Or is it OK to put 1/2" hose on a 3/8" fitting where necessary because the clamp will seal it? It appears that the fittings Moyer sells are both sizes, but I want to make sure, so that I have max water flow throughout the system.
Should I be using various bushings and adapters to ensure 1/2" barbs all along the way? What size are the barbs at the diverter? Or is it OK to put 1/2" hose on a 3/8" fitting where necessary because the clamp will seal it? It appears that the fittings Moyer sells are both sizes, but I want to make sure, so that I have max water flow throughout the system.
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