I FOUND A JACUZZI CANISTER FILTER OR POOL MICRON FILTER WORKS GREAT FOR MECHANICAL. POLISHES THE WATER VERY WELL. POND IS AWESOME. DIY PROJECTS ARE COOL. THIS IS WHAT I DO FOR A LIVING. INSTALL PONDS AND TANKS. U DID A GREAT JOB. GAVE ME ALOT OG DIFFERENT IDEAS FOR WALLS AND WATERPROOFING, OTHER THAN USING LINERS. THANKS