I've heard the Red Sea Reefmats are the best on the
market but if one of these companies used a tough, durable, pressure washable fleece, and a rolling system that allowed you to roll the used roll onto a fresh roll while blasting it with a pressure washer.
That would be the best filter roller money can buy.
Because instead of buying new rolls, you could wash them.
I've used pressure washable filter socks for about 3 years now, each one was $20, I also made my own filter basket and sometimes defer to filter fleece because I CBF pressure washing them all the time, I only have 3.
I literally beg any company to make pressure washable filter rolls.
I would legit pay 5x the price if it meant I could wash them, stick them in the dryer and even have a couple on hand so I won't need to immediately clean them if I were to get through the roll.
If I were to give any design tips, you could motorize the rolling system so it controllably slowly unrolls and rerolls onto the new roller while you spray/pressure wash the exposed fleece between the two rollers.
The fleece would need to clip into the new roller so it grips onto the new roll tightly.
As for powering the rolling cleaning system, a gear system in conjuntion with a DC motor should provide the torque needed for what I describe.
So really this is a two piece system and you'll only use the "Rolling Cleaning System" when you need to.
It sounds more expensive than any filter roller on the
market, but you would be saving more money than people buying fresh filter rolls after some time, and make the hobby cheaper in the long run.
I would say a good ballpark number for this kind of system would be around $1500 for everything except a pressure washer.
it's an affordable price, people could pay it in 4 payments via paypal because we aren't all rich reef aquarists and it would probably be around the same build quality and size as a RedSea Reefmat 1200.
I'm some poor jobless dude who had a motorcycle crash in 2018.
I highly doubt I'll ever have the capacity to design, create and
market something like this.
Which is why I try to talk about this concept a lot to boulster the chance of it happening in the next 10 years.