I've been using the Theiling Rollermat for about two months now. Figured it was time to share my experience so far. It has potential but I need to make changes in my plumbing to take advantage of that potential. The first day I didn’t adjust the flow rate and it went through a whole roll in one night.
I did not have room for the rollermat under the stand. So, it’s installed behind the tank. I use a Synergy Reef 16’’ overflow on a 180-gallon tank. I implemented a bean animal. The plumbing from the primary overflow line uses a 90-degree elbow to pump the water into the rollermat. The output from the rollermat uses a total of two 90 degree elbows to get the water into the sump. My weak attempt at a illustration is below.
As the roll starts to clog it’s like the output from the primary overflow line starts to backup. Eventually the emergency overflow line kicks in. Then I open the ball valve to “force” more water through the primary line. Eventually the float switch on the roller matt kicks in and the roll is rolled (ha ha ha) forward. However, if I don’t adjust the ball valve on the primary line to cut back on the water flow, it flows too quick and kicks the roller mat float switch and the roll is unnecessarily forwarded.
While the output from the roller mat is higher than the top of the sump, I think I need to raise the roller mat and use 45-degree elbows to improve the flow of water. And possibly move the roller matt closer to the overflow line.

I did not have room for the rollermat under the stand. So, it’s installed behind the tank. I use a Synergy Reef 16’’ overflow on a 180-gallon tank. I implemented a bean animal. The plumbing from the primary overflow line uses a 90-degree elbow to pump the water into the rollermat. The output from the rollermat uses a total of two 90 degree elbows to get the water into the sump. My weak attempt at a illustration is below.
As the roll starts to clog it’s like the output from the primary overflow line starts to backup. Eventually the emergency overflow line kicks in. Then I open the ball valve to “force” more water through the primary line. Eventually the float switch on the roller matt kicks in and the roll is rolled (ha ha ha) forward. However, if I don’t adjust the ball valve on the primary line to cut back on the water flow, it flows too quick and kicks the roller mat float switch and the roll is unnecessarily forwarded.
While the output from the roller mat is higher than the top of the sump, I think I need to raise the roller mat and use 45-degree elbows to improve the flow of water. And possibly move the roller matt closer to the overflow line.





