No brainer...Use Poly. Cheaper & more durable.

 

More Durable?

:laugh:

Do whatever is the current trend in your region. The people who service will be more familiar with it.

 

More Durable?

:laugh:

Do whatever is the current trend in your region. The people who service will be more familiar with it.

Double ditto..check locally...I'm pvc, but around trees, a poly lateral mite
work. Check with the pros.

 

No brainer...Use Poly. Cheaper & more durable.

More friction loss...more dumb fittings...durable? 200 psi poly..maybe.:hammerhead:

 

Why do you think poly is used when burying water mains to homes four feet and deeper? Flexibility and crush strength. Poly is quick to install and more forgiving of soil movement and tree roots. Also easy to repair. 100 psi poly has been tested to much higher pressures without bursting. Keep inhaling those fumes.

 

I love pvc, Easy to fit durable doesn't cut easy. But I hate the blue glue especially when I get it in a cut :blob2: :

 

I love pvc, Easy to fit durable doesn't cut easy. But I hate the blue glue especially when I get it in a cut :blob2: :

If you use sch 40, they make the cool (not cheap) clippers, clean cuts, no
crap in the lines. Switch to 711 medium body glue & p-90 primer.

 

More Durable?

:laugh:

Do whatever is the current trend in your region. The people who service will be more familiar with it.

And ditto again. I only use SCH 40 and up. SCH 40 can take one hell of a whack with a shovel and not break, can you say the same about poly or class pipe?

IMO the cost difference is not a factor when compared to the total cost of the system.

I use Medium or heavy duty grey cement with purp primer on all pvc.

http://www.oatey.com/apps/catalog/showprod.asp?ctg=1&subctg=2

If you want to design per ML/Kiril 10K specs then use Type-K copper for all your lines.

 

If you use sch 40, they make the cool (not cheap) clippers, clean cuts, no
crap in the lines. Switch to 711 medium body glue & p-90 primer.

Lol, I mean a cut in my finger. But yeah I agree 711 is good stuff.

 

I use Medium or heavy duty grey cement with purp primer on all pvc.

I'm not a fan of grey glue at all... since 90% of our main line failure repairs are from fittings (including bell ends) where grey glue was used. I have so many pictures of grey glue failed joints that I could flood a thread with them.

 

How many here have used both?

I have...poly wins, hands down.

 

I'm not a fan of grey glue at all... since 90% of our main line failure repairs are from fittings (including bell ends) where grey glue was used. I have so many pictures of grey glue failed joints that I could flood a thread with them.

Wow, I've never had a failure, possibly the medium body 711 not thick enough for the mega-pipe you use, pretty hard for you old guys to give it a
1/4" turn?:laugh: What do you use?

 

I've worked all copper, all pvc, and all poly systerms. For Colorado homes poly has worked the best.

 

I'm not a fan of grey glue at all... since 90% of our main line failure repairs are from fittings (including bell ends) where grey glue was used. I have so many pictures of grey glue failed joints that I could flood a thread with them.

I've never had a failure either, except the ones I forgot to glue.

Perhaps your observed failures are combo of primer and grey on class pipe?

In most cases I won't use primer on class pipe (too thin walled), just the grey. However, I will use it when doing an in-ground repair on dirty class pipe, but only a very little to clean what water can't get off. I do prime the new fitting I am using and any scabs are done with SCH 40.

When I do prime class pipe I am VERY careful not to get primer on anything other than what will be covered with a fitting, and then only about 1/2" deep.

Thing about primer and class pipe....the pipe can become malleable.

 

hi carnelkw, I'm an hour north of charlotte just south of Asheboro, NC. In our region most people use PVC pipe. if you're getting a professional system installed please spec sch 40 and not pr-200 which most of my counter parts around here go with. you'll regret this over time, mainly because the thiner pipe gets brittle as it ages and if you even so much as plant annuals and tap the pipe you could break it. being you have large trees get the installer to try to avoid these, and if they must cut into the root zone go in straight and not across. given you're in Charlotte I'm guessing oaks so its important to be careful they don't appreciate trenching at all. I've even used a boring kit instead of trenching. also get a separate meter so you don't pay sewer.

 

Wow, I've never had a failure, possibly the medium body 711 not thick enough for the mega-pipe you use, pretty hard for you old guys to give it a
1/4" turn?:laugh: What do you use?

We don't use it... we use nothing but Plumb-Tite. The grey glue failures are from contractors and plumbers over the years. We've had exactly one main line fitting failure in 20+ years using the Plumb-Tite.

 

Perhaps your observed failures are combo of primer and grey on class pipe?

CL 200 or SCH 40 makes no difference. I've seen grey glue failure with both.

In most cases I won't use primer on class pipe (too thin walled), just the grey.

We use it all the time on CL 200 pipe and have never had any problems. Perhaps it's an installer-related problem?

When I do prime class pipe I am VERY careful not to get primer on anything other than what will be covered with a fitting, and then only about 1/2" deep.

Thing about primer and class pipe....the pipe can become malleable.

I've dribbled it here and there on CL 200 pipe and never experienced this. :waving:

 

if you're getting a professional system installed please spec sch 40 and not pr-200 which most of my counter parts around here go with. you'll regret this over time, mainly because the thiner pipe gets brittle as it ages and if you even so much as plant annuals and tap the pipe you could break it.

This tells me that you only install "dinky pipe" systems (1" and below) and really don't understand what SDR Class pipe is all about. Some sizes of CL 200I use have thicker walls than SCH 40.

 

hi carnelkw, I'm an hour north of charlotte just south of Asheboro, NC. In our region most people use PVC pipe. if you're getting a professional system installed please spec sch 40 and not pr-200 which most of my counter parts around here go with. you'll regret this over time, mainly because the thiner pipe gets brittle as it ages and if you even so much as plant annuals and tap the pipe you could break it. being you have large trees get the installer to try to avoid these, and if they must cut into the root zone go in straight and not across. given you're in Charlotte I'm guessing oaks so its important to be careful they don't appreciate trenching at all. I've even used a boring kit instead of trenching. also get a separate meter so you don't pay sewer.

Well damnit - now I have to head back to Texas and dig up some of those 25+ yr old irrigation systems that I installed using SDR-21 pipe because they might be brittle. And I think there are a few that have SDR-26 160psi down there too.

I guess while I'm there I better tell all those golf courses to dig up their SDR-21 brittle pipe and replace it also.

Sheeesh....the battle goes on. "My pipe is better than my competitor's pipe because I use ..... pipe." It is a good selling point for the uneducated consumer because thicker is better and equates to a quality system. Wonder why most of the larger irrigation installers in the country use so much SDR pipe.

If thicker is better then go all the way and use nothing but Sch 80.

It still boils down to proper installation of a properly designed irrigation system. If it's installed properly using clean fill and well compacted at the proper depth PVC will last many years. There are still a boat-load of systems installed using the original SDR-21 grey PVC manufactured by TELSCO back in the late 50's and early 60's and they are still working fine.

That's why some folks drive Chevy's, others drive Fords, and some push Dodges. Whatever works for you.

 

Well damnit - now I have to head back to Texas and dig up some of those 25+ yr old irrigation systems that I installed using SDR-21 pipe because they might be brittle. And I think there are a few that have SDR-26 160psi down there too.

I guess while I'm there I better tell all those golf courses to dig up their SDR-21 brittle pipe and replace it also.

Sheeesh....the battle goes on. "My pipe is better than my competitor's pipe because I use ..... pipe." It is a good selling point for the uneducated consumer because thicker is better and equates to a quality system. Wonder why most of the larger irrigation installers in the country use so much SDR pipe.

If thicker is better then go all the way and use nothing but Sch 80.

It still boils down to proper installation of a properly designed irrigation system. If it's installed properly using clean fill and well compacted at the proper depth PVC will last many years. There are still a boat-load of systems installed using the original SDR-21 grey PVC manufactured by TELSCO back in the late 50's and early 60's and they are still working fine.

That's why some folks drive Chevy's, others drive Fords, and some push Dodges. Whatever works for you.

So that's the grey pipe that I am pulling up on this current job that I am working on. Fits right in the time era.

Even when I asked about grey pipe,(Ewing in San Fran and Horizon in Menlo Park), nobody could tell me who used grey pvc pipe. In all the years I've been in this trade, never saw grey pipe until this new sod and sprink job I am currently working on.

 

Well damnit - now I have to head back to Texas and dig up some of those 25+ yr old irrigation systems that I installed using SDR-21 pipe because they might be brittle. And I think there are a few that have SDR-26 160psi down there too.

I guess while I'm there I better tell all those golf courses to dig up their SDR-21 brittle pipe and replace it also.

Sheeesh....the battle goes on. "My pipe is better than my competitor's pipe because I use ..... pipe." It is a good selling point for the uneducated consumer because thicker is better and equates to a quality system. Wonder why most of the larger irrigation installers in the country use so much SDR pipe.

If thicker is better then go all the way and use nothing but Sch 80.

It still boils down to proper installation of a properly designed irrigation system. If it's installed properly using clean fill and well compacted at the proper depth PVC will last many years. There are still a boat-load of systems installed using the original SDR-21 grey PVC manufactured by TELSCO back in the late 50's and early 60's and they are still working fine.

That's why some folks drive Chevy's, others drive Fords, and some push Dodges. Whatever works for you.

Ditto here as well. 99.9% of the pipe installed in DFW is pvc class 200. Every now and then we see a production defect but almost always the problems are contractor/HO related or things no pipe would survive. Better places to spend upgrade money in a sprinkler system.

 

Keep specing sch 40......keep bidding it using that price base......I'll have another state to move a company into and blow the doors off the rest of the companies...

FFS....sch40?^&%$#^(*&&

Throw the stick and watch them monkeys....

 

you guys are excitable. I use sch 40 because we want our systems to last a looooong time, and so do my customers. I have repaired far too many systems and though much of the problems are negligence related its not much fun to dig around and have pipes shatter on you. Also how long in yalls markets does the pr200 take to get brittle, I've repaired 8yr-old systems and had this? Maybe our constant freeze/thaw climate here has somthing to do w/ that? On commercial jobs I could defiantly see the benefits of the cheaper pipe. Fortunately, we do very little bid work. Also please don't assume I put pipe 1" in the ground.

I wasn't attacking anyone's method, just telling what people here in the piedmont of NC do, in Raleigh there are a lot of poly puller, but it is sandier soils, we have nice hard red clay, sand rock and rocks.

 

you guys are excitable.

It's a great stress reliever. :laugh:

I wasn't attacking anyone's method, just telling what people here in the piedmont of NC do, in Raleigh there are a lot of poly puller, but it is sandier soils, we have nice hard red clay, sand rock and rocks.

We have this argument all the time and you're just the latest poster to get us going again. Nothing personal.

 

Now..just don't give us the exact specifics on where ur blowout hookups are or are not.....

 

It's a great stress reliever. :laugh:

We have this argument all the time and you're just the latest poster to get us going again. Nothing personal.

Let's keep it going.
I don't see that your weather is that much different than us in BIG D. Do you guys even do blowouts?

http://www.wunderground.com/NORMS/D...RMS.asp?AirportCode=KHBI&SafeCityName=Asheboro&StateCode=NC&Units=none&IATA=GSO