UPDATE:
Back at work tonight...
As you may know, I didn't originally design my sump to accommodate filter socks. I've been thinking about a way to mount 7" socks securely for a long time and finally came up with a solution. Here goes...
Here's what I started with... This is one of the two 1.5" drain bulkheads that terminate into the drain section of the sump. There is a small piece of 1.5" pvc that is friction fit into the bulkhead that extends about 1" under water. The water level in these pics is high because I turned off the return pump and skimmer to photograph this project. Operating water level is ~1.5" below what is shown.
So after a year of research it hit me... If I turn a 2" Uniseal bulkhead upside down, it would create the perfect ledge for the tabs on a 7" filter sock to rest.
The I.D. of a 2" Uniseal is ~60mm in diameter, slightly smaller than the O.D. of my 1.5" bulkheads. I needed to machine the inside of the Uniseal to allow it to adapt to the threaded side of the bulkheads in the sump. So using a coarse sanding drum on the drill press I sanded down the rubber enlarging the I.D. to roughly the O.D. of the threads on the bulkhead.
Once I was done sanding I cleaned up the Uniseals and pushed them onto the bulkheads. Again, the operating level of the sump is roughly 1.5" lower than the water level shown in the pic below.
With the filter sock installed you can see how the tabs on the 7" sock clip nicely above the uniseal's rimmed edge. Makes for a secure fit that allows for quick and easy sock changes. I can easily remove the dirty socks and replace them with clean socks without disturbing the new Uniseal sock mount.
So it took me a year to think of, but only 30 minutes to complete the project. :lol: But what I like most, the filter socks are securely fastened to the sump but can be easily removed for cleaning. Also, no permanent changes to the sump were necessary. And for about 4 bucks a piece for the Uniseals, now that's reefing on a budget.
