I have 3 zones - one used 7 loops, one used 3 and one used 4
All together there is about a half mile of PEX in there! (just over 2600 feet total!) The longest loop is 180 feet, the shortest is about 110. (hence the need for ball valves to "balance" things)
I posted a site in another section of HR.com about where to get info on laying it out.
Bottom line - you want 6 inches apart around the perimeter, and then a foot apart for the rest.
My son and I laid it all out and installed all the pex while trying to keep the lengths of all the loops as constant as possible
We also had to make allowances for my two 4-post hoists, so we had to mock up the hoists and mark the styro, then measure and make an accurate "map" for where the posts will be installed in a few weeks.
If U want the sites for how to lay it all out, I can dig 'em up & include them in here, or you can PM me
Last edited by Dave57210; 02-07-2010 at 06:43 PM.