Sorry been away, work has been crazy busy. I will upload some pictures and video for you.
Yes, i do believe it is the 200w heaters. I will double check though.
The main problem was with the return bulkhead placement. The return bulkhead on the CL44 is in the corner of the return chamber. With the size of the varios 8 pump, and the shallow depth of the sump (18”?) made the distance from the return pump output to bulkhead about 10” or so. The angle though made it impossible to hard-plumb without putting multiple 90 degree elbows to line the pump outlet with the bulkhead. I used tubing instead but the angle still made it hard to install.
Ideally I wish the bulkhead was more centered in the return chamber to allow a straight plumb for unrestricted flow.
This isn’t that big of a deal though once it’s installed. The CL-44 has been fantastic and I would recommend it to anyone!