pantyhose over the filter inlet. i have the same filter.You know what I just tested the water the other day and I do not have hard water but it does have a high current. I have no idea how to slow it down. I turned my filter down so its not as strong but it still makes the water very flowy. its a wisper 10 filter and i don't know how to stop the water from moving so fast any ideas? I do not have money to get a sponge filter nor do I want another filter.