You've have enough hp.....deeper the better the one time deep freeze w broken pipe will pay to go 1, to 18"..... 2diff kind of pex freeze is cheeper and they still make it always go w/no freeze type gator fittings are the way to go for novices. ...ring type cheeper but takes expensive tool to clamp....then you have compression type that will take different pipe besides pex.....always pull deeper than you need to clout rocks and problem areas...you may have to drag subwoofer 2-4 time to clear soil... good 5gal bucket w /tight lid works be careful when opening bad spiders love these dark holes wear heavy gloves to turn on valve leave open for a few and look.good luck. Nfp
