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Title: Hugh Disappointment
Review: Before installing the product I attempted to operate the valve on top with the wrench supplied. The effort to turn it was so high that the wrench (plastic) kept slipping off. I finally succeeded in freeing it and went on to to try and remove the filter housing. I was never able to loosen it up and gave up, fearing I would break the plastic wench that came with the setup. I called Omni Corp to see if I had a defective unit or if they were all like that. I was told that the unit had been out of production for a while and they gave me the model number of the newer version. I am not sure if the problem with the unit I had was age, and the lubricant installed at the factory had dried up, or a very poor design. I think it was a combination of booth! I returned it to Amazon a purchased the new model locally.
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