Originally Posted by Soggy_Pancakes
I've been looking at getting this filter for a few days now and the only thing that is holding me back is the fittings that break. Is the part of the fitting that breaks something that could be reinforced with some epoxy? If it's one of the places on the fitting that is indented then I would think you could just fill it with some 2 part epoxy and never worry about breaking that part again.
IMO it's user error as much as design flaws that would break the fitting. Two issues: O-rings that are too large, which leads to a lot of force required to pull off the connector from the fitting. If you don't pull straight up, while gently turning/wiggling the connector, it would put a lot of stress on the fitting.
Second issue, the shutoff valves. They are difficult to turn as well, and if you don't support the connector while turning the shutoff I can imagine the force breaking the fitting as well.
Both issues are easy to circumvent. Thinner O-rings, and supporting the assembly when turning the valves will prevent things from breaking.