Low-water pump shutdown

bromion · 05/25/2006, 02:42 PM

I want to install a low-water pump shutdown that does exactly what the one described in Aquarium Electrical Systems does (http://www.reefkeeping.com/issues/2002-03/jg/index.php). I'd rather not build it myself if there is a commercial product available for a reasonable price. Do you have any suggestions on where to find such products?

Thanks!

jdieck · 05/25/2006, 02:55 PM

Most top off controllers can be set up to also detect low level and not to turn the pump on (or shut it off is the level is too low.
Here are two posibilities:

http://www.premiumaquatics.com/Merch...ry_Code=Dosers

http://www.premiumaquatics.com/Merch...ry_Code=Dosers

bromion · 05/25/2006, 06:38 PM

Unfortunately, these do not have the reset circuit that keeps them off until the reset button is pushed. If water siphons back to the pump temporarily, these units will start the pump. I'd like the pump to stay off if the float switch goes low, then only re-activate when I tell it to.

jdieck · 05/25/2006, 08:11 PM

I think in that case you may need to DIY. Which is not difficult to do. I have made a couple. I can draw you a circuit if you like.

05/25/2006, 02:42 PM	#1
bromion Registered Member Join Date: Oct 2005 Location: Pasadena, CA Posts: 2,576	Low-water pump shutdown I want to install a low-water pump shutdown that does exactly what the one described in Aquarium Electrical Systems does (http://www.reefkeeping.com/issues/2002-03/jg/index.php). I'd rather not build it myself if there is a commercial product available for a reasonable price. Do you have any suggestions on where to find such products? Thanks!

05/25/2006, 02:55 PM	#2
jdieck Registered Member Join Date: Dec 2002 Location: Maumee, OH Posts: 15,673	Most top off controllers can be set up to also detect low level and not to turn the pump on (or shut it off is the level is too low. Here are two posibilities: http://www.premiumaquatics.com/Merch...ry_Code=Dosers http://www.premiumaquatics.com/Merch...ry_Code=Dosers __________________ Did I write what I wrote? What the heck am I talking about! Well..... Nevermind. Current Tank Info: 225 gal reef, DSB, 40 g sump w/ LRT100 return, 37 g pre-sump, 3 MH 250 W 15K, 4 96 W PC dual actinic,ETS 1500 Skim.w/LRT70, 20 lb Ca R., 40 W UV, 1/3 HP chiller, two 350 W Htrs, Neptune II Cont., 330 P LR/ 330 P LS. 55 gal Refugium

05/25/2006, 08:11 PM	#4
jdieck Registered Member Join Date: Dec 2002 Location: Maumee, OH Posts: 15,673	I think in that case you may need to DIY. Which is not difficult to do. I have made a couple. I can draw you a circuit if you like. __________________ Did I write what I wrote? What the heck am I talking about! Well..... Nevermind. Current Tank Info: 225 gal reef, DSB, 40 g sump w/ LRT100 return, 37 g pre-sump, 3 MH 250 W 15K, 4 96 W PC dual actinic,ETS 1500 Skim.w/LRT70, 20 lb Ca R., 40 W UV, 1/3 HP chiller, two 350 W Htrs, Neptune II Cont., 330 P LR/ 330 P LS. 55 gal Refugium

05/25/2006, 06:38 PM	#3
bromion Registered Member Join Date: Oct 2005 Location: Pasadena, CA Posts: 2,576	Unfortunately, these do not have the reset circuit that keeps them off until the reset button is pushed. If water siphons back to the pump temporarily, these units will start the pump. I'd like the pump to stay off if the float switch goes low, then only re-activate when I tell it to.