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Old 12/04/2017, 01:04 PM   #2
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Join Date: Apr 2000
Location: Austin Texas USA
Posts: 35,471
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
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