The use of a propress would have required opening the wall to allow room for the tool. I am not convinced that Propress is best for new installation work. Those o-rings are not going to last forever. All systems expand and contract, a solid fitting will expand and contract with the pipe. I think a system full of o-rings is a system full of potential problems. They are fine for out in the open repairs, Or to make a fast tie in for add ons (if the joint will be accessable).
My personal opinion is not entirely positive about the pro press system. Its just my opinion.
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