Ok... well I have a 1800 gal koi pond. My neighbor also has a koi pond. We went in together and made one of the DIY filters and spent over $200 making it. HATE it! My yard is not completely level... SOOO the water flow has to be going downhill or the water will back up, and my pond is in the front of my house, and the thing is HUGE and I have no where to hide it. And no way to build a waterfall, bc the water will not flow uphill! Not to mention the water is so cloudy you can't see 5 inches underwater. I am wanting a smaller pressurized filter. My max budget is $350. If anyone knows a good filter by experience for my size of pond, preferably with backwash, could you please let me know. I have seen tons to buy from, but I want to know how they work from someone else's experience. Don't want to make another one.:yikesu:THANKS!
Britt
Britt