That's why I started this thread - good info.
So let me parse your statement and add comments
Hadn't thought about warning tape
I was tentatively thinking of two primary sections: 1 section from the house to about the slope up to the driveway, about 150 feet. Then 1 section under the driveway for about 75 feet going into a 90 degree turn of an appropriate radius and then about another 75 feet up to the corner of the first shop, so I was thinking the second section would be about 150'.
The 100' rule is based on the common max fish tape length of 125'. Never seen one longer. most long underground runs usually have a pull string installed as the pipe is assembled unless in a long roll. The the fish tape is pulled in with that. You could even install the cable that way and save a step, but the cable is vulnerable somewhat.
As I wrote previously I'll probably be doing this by myself or with relative help. I planned to lay out the pipe cut into subsections small enough to easily pull through, with them either on the ground or in the ditch, then put the subsections together get them in the ditch and carefully cover.
Will I still need a pull box every 100 feet? Could I get by with one at about the half way point, beside the driveway?
How long a section do you think I could pull ? The cable weighs 64 lbs/km. I'm planning on pulling about a tenth of that, so say 10 lbs max.
KEEP the dirt out of it. You will be surprised how heavy that 10#s gets when you add friction, especially around bends. As you are using ready made ends; those connectors will add a lot of friction and tend to snag on coupling edges. Why fight it, put the pull boxes (hand holes) in to reduce the frustration factor.
I planning on using a 1.25" ID poly pipe, and planned on a gradual sweep.
What about those ready made ends? How much larger will the gob you are pulling through get? On commercial jobs we always always used 2" from the street (manhole or pole) to inside the building for insurance.
any recommendations for slickum?
It is what electricians call the wire pulling compound they use. It is a soap/glycerin compound. The expensive variety is called KY Jelly)
I wouldn't call the pipe "cheap" compared to fiber. One place
DLW has 450' of for $247.50 (plus $170 for termination). The translators look like about $100@. The pipe at HD
- 1-1/4 in. x 300 ft. IPS 100 PSI UTY Poly Pipe is $174 for the 300 feet. For 2" 80 PSI, 300 ft it would be $404. The labor is free (me) and the ditch is for another project.
Boy fiber has sure come down in price in the last 10 years. 2" DWV PVC 20' length water pipe is $1/FT at Lowes. The cable does not care about the value of the pipe, only the protection it gives. Yeah on Gov jobs we specified some pretty expensive stuff with no value added.
One more thing, plug the raceway with "Pug Duct Seal" when done to keep bugs and mice out of the pipe. Mice will go along way and tend to chew stuff up as they go. Lowes has it.
Thanks for the pointers!