Finished the plumbing today, but I was too tired to get after shots. Digging up that slab portion and tunneling under the walkway was more work than I thought it would be.

I realize this was a question thread that turned into a build type post. If it's inappropriate or I'm blabbering please tell me so and I'll stop. Thought I might as well share with others what I did, and that although seemingly a difficult task it's just one of manual labor and perseverance.



I plan on using some crushed white rock to fill in the hole. I do have a concrete guy and I suppose I could get him to repour the missing chunk....But I don't think it will hurt anything and you will never see it.

The cuts extending into the walkway are both on expansion joints, so they should blend in nicely. Overall I'm happy with the hole I made. The propane heater will be removed shortly....I have no plans to replace it with a heatpump. Not sure what I will keep in it's place.

That 1" pipe was helping me tunnel under the walkway....it's been replaced with 2x 2" Schedule 40 PVC. I connected the angles that wern't perfect with spa/flex PVC. The upand down pipes on the garage are in place. All glued connections are uncovered. I should have the 3 way valve and check valve soon...I will connect all the plumbing and hopefully fire this up this coming Thursday.