SkyReef
Member
If I use a tru-union ball valve on the return line, just before the inlet of the external pump, I gain an ability to remove the pump without draining the sump. However, in order to fit the tru-union ball valve + pump behind my tank, (i.e., the pump with the added length of the tru-union ball valve), I will need to turn my pump sideways. A sideways-turned pump means using two (2) 45-degree elbows or a curved section of spaflex PVC after the outlet of the sump and before the inlet of the pump. Bummer; it's better to have the return line to the pump short and straight, to avoid noise and friction loss.
So...
Why not just dispense with the tru-union ball valve before the external pump? It's true that I would need to drain the sump to remove the pump, but big deal! How often do I need to remove my pump? Not as often as I need the pump to be quiet (i.e., every day). Laying out the return line this way, I could simply position the external pump in-line with the sump-out line, not sideways to it. This would produce a quieter and cleaner return-line flow.
Has anyone ever done it this way, dispensing with the tru-union ball valve on the inlet side, to gain a non-elbowed inlet connection? Of course, I will have a tru-union ball valve on the outlet of the pump, just not the inlet. What do you think of my plan? Thanks!
So...
Why not just dispense with the tru-union ball valve before the external pump? It's true that I would need to drain the sump to remove the pump, but big deal! How often do I need to remove my pump? Not as often as I need the pump to be quiet (i.e., every day). Laying out the return line this way, I could simply position the external pump in-line with the sump-out line, not sideways to it. This would produce a quieter and cleaner return-line flow.
Has anyone ever done it this way, dispensing with the tru-union ball valve on the inlet side, to gain a non-elbowed inlet connection? Of course, I will have a tru-union ball valve on the outlet of the pump, just not the inlet. What do you think of my plan? Thanks!