Have talked to the neighbors. None of them have problems with algae building up in their hoses. They all use the white Camco drinking water hose that you can almost read a paper through and No filters of any kind. Nor do they change or sanitize the hoses with bleach. I've already had several hoses swell up at the RV end and burst. Very little if any sediment in the screen hose filters. Only time I use the fresh water tank is when I'm on the road or when I sanitize the whole house system with bleach. Only other possible option would be to get some 3/4 PVC water pipe but then I would have to worry about storing it when I move the RV.