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rvitko · 12/04/2017, 01:04 PM

It won't harm pump life the main concern would be that as a sump return this would cause water level variations and potential havoc with skimmers and ATO's. The 1073.050 made before mid 2015 that lacks a 7090 controller will work with no mods, the newer ones include a stripped down 7090 that lacks a DIN port and lets you just set one fixed speed, to connect it to an Apex you need to replace the controller with the 7090.500.

12/04/2017, 01:04 PM	#2
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	It won't harm pump life the main concern would be that as a sump return this would cause water level variations and potential havoc with skimmers and ATO's. The 1073.050 made before mid 2015 that lacks a 7090 controller will work with no mods, the newer ones include a stripped down 7090 that lacks a DIN port and lets you just set one fixed speed, to connect it to an Apex you need to replace the controller with the 7090.500. __________________ Roger Vitko Tunze USA "He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!" Current Tank Info: 210 gallon planted tank with Altum Angelfish