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[andyjs]

Need to replace my underground pipe to boiler just wanted some opinions.I have a 4 foot wide path 150 feet to the house snow melted my pipes are junk!

[CountryBoyJohn]

Depends on your financial situation.  Do you want to pay $5, $10, or $15 per foot?  Also note, that underground piping is YGWYPF.  You Get What You Pay For.

[andyjs]

I learned that the last time paid 6 bucks a foot and its junk.just wanted opinions on like a 5 wrap or thermopex?

[racnruss]

my snow melts between my boiler and garage too.  Luckily it is only about a 20 foot run.

I think the next time I put pipe underground I am going to put my insulated pex-in-black pipe INSIDE a 6 inch hard PVC pipe with the joints glued and elbowed up to above ground on both ends.  That way the cold, damp earth can't even touch the black tile pipe.
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[CountryBoyJohn]

Your Cadillac best of the best option is Logstor.  There are a lot of guys on here who have lost faith in Thermo-pex.  The cheaper option the guys on here endorse is the 5-wrap.  I think most are in agreement with what racnruss mentioned: sleeving the insulated pipe in a solid smooth plastic pipe.  Schedule 30, 40 or something like that. 

[andyjs]

http://m.ebay.com/itm/250748766468?cmd=VIDESC&gxo=true I found this 5 wrap on eBay is it any good?

[juddspaintballs]

I dug a trench with a mini excavator, put down thick plastic sheeting the entire length of the trench, put my pipes in the trench, and spray foamed it.  I lifted up and separated the pipes about an inch as I went along and sprayed as I went.  In the 80 feet between boiler and house, I have a 0 degree heat loss and my snow have never melted over the piping.  The pipes enter the house only about 1' under ground too.  Closed cell spray foam wrapped in plastic keeps the water out and the heat in. 

[andyjs]

Where did u buy the spray foam?

[hondaracer2oo4]

+1 on the in ground spray foam. I have a 100 foot run and lose 1 degree. I had a guy come and spray it. He sprayed my water jacket on my boiler + 100 feet of line for $500.

[cantoo]

That pipe looks good but do you know what type of tile it's actually in?
 This picture is of a 3 year old SOLID drainage tile buried 4' deep, poplar trees are minimum of 25' away. Enlarge the pictures to really see the roots. I had to cut the tile in half just to remove the roots. I have since replaced this tile with 4" PVC solid sewer pipe.
 PS, I used logstor on my own install, I also did another short run of 30' of 4" PVC with foam insulation on the lines just to see if there was a difference.

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[MattyNH]

All I got to say is spend the $$$ for the good pipe..Id be buying it from the dealer of your boiler …Maybe look into central boiler piping as an option too.. Def don't do the home depot way…If your buying online..Just be careful what you buy

[ITO]

 I used this for a run and no complaints:
http://www.pr.com/press-release/342081

[cantoo]

Maybe some of these companies should test their pipe in a swimming pool or water tank to check the heat loss? Would this not be a fairer test than laying it on the ground or floor and seeing what the temperature loss is? Are there any dealers on here who sell the foam wrapped in a corrugated type tile that would test theirs? It would be an easy test to do in a tank using a coil of pipe.

[willieG]

if you goto the website of a manufacturer you amy see how they tested their pipes...i think i seen one that said it was in 32 degree earth and at 5 gpm of 180 degree water

i have seen others that pump the water faster  (as high as 10gpm) to make the numbers look better

[cantoo]

But do they submerge it in water? I spent hours reading online before I bought my line and it seems to me that almost every problem was water infiltration of the line. So it would make sense to me to test the pipe under water to see how it does. Even an air test of the actual tile would tell you if it leaks or not. I bought a roll of solid field tile and it was full of holes ( from rubbing during shipping, manufacturing flaws etc) so I took it back.