I am currently trying to put together a sump using a 15 talk and standard 10. Simply because I already have the equipment and while I have built a couple acrylic sumps from scratch. I don't see why not go this way with it if will work. I'm starting with the 15 under the overflow and then linking the 10 by using a eshops over flow box. I'm using a in sump return pump. Has anyone ever seen this type of application or even tried it? I love input before continue plumbing the system.
