If anyone cares, I HIGHLY recommend the Pylex pilings for footings for a deck or other similar construction project.
Put a 6' x 1/2" piece of rebar down around five and a half feet with a sledge hammer, and then the piling over that (piling is hollow). Used a 3/4" impact with an adapter made to fit in the top of the pilings to get them started, and then when it struggled, took the impact off, put the cap back on the piling and used a 2 x 4 to get it down the rest of the way. Got 18 of them in about five to five and a half feet in under four hours including breaks. Cost me around a thousand bucks. MUCH cheaper than the $5100 quote for a similar product with the same weight load capacity.
Has the deck heaved at all? I'm also in northern ontario. Thanks!