Grizz's 8' - 300 gal + 60 gal + 30 gal OMG Build!!

[The Grizz]

Originally Posted by sphelps

Why not just skip the SCWD and build a controller to alternate the each pump cycle.

Less to go wrong with the SCWD then going though all the trouble to build a controller and it not work right. Plus the DC pump ramp up slower then most pumps as you know.

[sphelps]

Originally Posted by The Grizz

Less to go wrong with the SCWD then going though all the trouble to build a controller and it not work right. Plus the DC pump ramp up slower then most pumps as you know.

I guess it comes down to mechanical vs electrical. Typically I would agree on the mechanical being much more reliable as is with most things but I'd think those SWCDs will cause more issues once they start developing build up. but probably easy to pull them later if that happens.

Have you bought the pumps yet? The new ones have built in 0-10V ability, but aren't out yet. Pretty sure building a controller for the old ones wouldn't be all that difficult either. I've been waiting for someone else to do it so I can copy them, hence my suggestion In terms of reliability can't see much going wrong, never had issues with controllable DC pumps like Tunze before, at least not relating to the controller portion of it.