:P Hello folks hope everyone is well, had a new UV clarifier in my pond now for 4 weeks, it started to clear the water almost immediately was over the moon, now the water looks dirty and there is lots of algae clinging to plant stems and pond walls anything that is below the water level really, got some ramshorn snails in there but there effort is futile, will it balance eventually or do i need to manually clean the pond out? I also need to clean the filter every 4-5 days as it is clogging with sludge that's the manufacturers advice is it normal?

I'd say it probably looks kinda brown because of the dead suspended algae. I'm also cleaning out my in-pond filter more frequently than I'd like. I've had my UV for about 2 weeks now. You've probably always had the carpet algae but never noticed it....I love it. And it's so cute the way the fish all line up to munch on it like a buffet. I also don't have to worry about feeding them fish food when I forget. :rolleyes: Some don't like and scrub the pond outright, but I'd leave it alone. It's the beginning of the balanced food chain.

When you install a UV sterilizer, it kills off the suspended algae. That allows plants and other algae to grow better as they have more light and nutrients. While your attached algae were probably always there, now they can grow better. As long as that algae is not trapping fish or clogging plants and pumps, you can leave it there because it is helping to filter the pond. Some algae is good. It's not good if it's all over the plants though. Hand remove what you can from plants. Manual cleaning may help short term but probably not long term. As more plants grow, there will be less algae with time. I clean my pre-filter once a week and my filter once a month in the warm months. If you're cleaning more often than that then either the pump and/or filter are too small for the pond, or you need to spread out the surface area of the filter intake. If the pump's intake is clogging, or the pump simply lets too much debris past, see http://www.fishpondinfo.com/mypond.htm#detail for what I did to make a pre-filter around my pump.

The "dirt" in the pond may still be some dead algae, and that can clog the pump or filter. With time, that should subside.

Thanks for the info, :D glad to see you got your uv filter sadiemay fantastic inventions don't you think. The algae that is on the plants as soon as i go to touch it it just breaks up and is more brown now rather than green, so i'm hoping that this dead or dying aglae fingers crossed, I've also noticed that the fish are terrified of what i'm not sure they don't come to the surface anymore when they do its feeding time and they seem to dart up to the surface and then straight back down seem to have took a step backwards as far as the fish are concerned.

I used to laugh at that. The fish first got used to just a hand in the algae soup feeding them. Soon as it went in, no problem, they were up. When the algae cleared it seemed to be a shocker about what was connected to the hand. lol :o

If the fish are used to partially opaque water, they will be scared when it's clear at first. They may also have seen predators and become scared.