Curious what others are finding works well for trench layouts for your hdpe piping. We have done several systems and have run them all the same way, we havent had any trouble but would like to know if anyone around here has field experience with trenching systems and how they lay out.
We currently trench 2′ wide, 6′ deep. 2 lines on the side walls at 6′ returning at 4′. 250ln ft of trench yields me 1000′ of pipe. Anyone running more lines per trench? If so, how is the recovery rate?
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all the systems i have done i trench. i can cut huge expenses by doing this. I use 3/4'' hdpe pipe. yes its the black pipe thats similar to the gas lines.
In terms of the manifold, it is not burried. I like to use full length coils in the trench with no joints in the ground. all the lines come up the ground at a specified location and the manifold, pumps and controls are all set there. Before we cover up the pipe we pressure test it, once we confirm there are no leaks we cover it up and all conections are above ground.
you should seriously look into it. with the 30% tax credit avaliable i have been able to do 3 systems in the last 2 years that have been cheaper than a conventional air source pump.
So what size is the pipe that runs from the manifold to the compressor? Do you use the fusion setup for the joints?
I'll be trenching also. I really do like the aspect that everything is out of sight underground.
3/4'' in the field and 1 1/4'' from the manifold to the compressor. yes i use fusion welding for the joints.
Good. I'm pouring 20 yards of concrete on Friday and I have 1 1/4" poking through in anticipation of setting up a gshp later on. Sounds like I'll be okay. I was told residential doesn't see larger than that pipe diameter. Thanks.