Sil-O-Flex Polyethelene water pipe questions

[Kenneth Brown]

Went today and got some prices on a house we are hoping to build. I will have to run about 700 feet of water line to the house. The builder wants 3 a foot to run it. I found the Sil-O-Flex line at Lowes for $99.78 for 300 feet. I would have to rent a trencher at $230 for the day but I'm still way cheaper. Anybody ever use this stuff? It has a 25 year warrenty so it must be prety good. Looking for opinions.

 

[Boomyal]

Re: Sil-O-Flex Polyethelene water pipe questions

Some of that coiled plastic can be pretty obstinate to work with. Although I don't know that name it sounds awful cheap. Would make me suspicious. I'd be inclined, in the absence of verification to go with something proven. Be a lot of work if leaks show up down the line.<br /><br />Also, what's the diameter of it. For 700 feet I'd be inclined to run 1 1/2". I know that is bigger than your meter connection but any smaller you'd get a huge friction lose at that distance. If it's running downhill you might get away with 1 1/4".<br /><br />You might check into schedule 80 pvc.

 

[Kenneth Brown]

Re: Sil-O-Flex Polyethelene water pipe questions

Its 1" IPS. Sch 80 PVC would be kinda cost prohibitive I think. I see the city workers using a similar product all the time. Maybe there is a diferent brand.

 

[Kenneth Brown]

Re: Sil-O-Flex Polyethelene water pipe questions

Anybody else have an opinion?

 

[dhammann]

Re: Sil-O-Flex Polyethelene water pipe questions

Silver-Line® Plastics<br />1" x 100' Polyethylene Coil Pipe<br /><br />Item #: 24169 Model: 24169 <br />$18.24<br /> <br /> <br />This is what you need. Be sure it is below frost line....it should last a lifetime. Anything over i inch is overkill, in fact 3/4 would suffice for a residence.

 

[Boomyal]

Re: Sil-O-Flex Polyethelene water pipe questions

Originally posted by Big Dee:<br /> Anything over i inch is overkill, in fact 3/4 would suffice for a residence.

I beg to differ BD. Not for a 700'level or uphill run.

 

[ZooMbr]

Re: Sil-O-Flex Polyethelene water pipe questions

I'm with Boom on this one 1 to 1 1/2 min. we ran 2" from pump house to ranch house; 600 ft. This has a shallow well pump to pressure tank in the pump house and a pull pump to storage tank (large 500 gal)in the house as it sit up hill about 80 ft. Which is about the high end of the pumps power. And a pump to pressure tank to pressure the house. Disconnect the pull pump and the flow isn't much, even under the 60lb pressure from the pump house.<br /><br />Long winded way of saying listen to Boomyal!! Friction reduces flow and over 700 ft 3/4' is not enough. Can't remember the web site I was on that allowed you to comp this but it was an eye opener.

 

[dhammann]

Re: Sil-O-Flex Polyethelene water pipe questions

I assume that we are are talking about a municipal water supply and not a well. With a well you have to factor in increased head. Also the delta-P for cut-in is usually 20 psi which means the water pressure drops to only 30 psi before the pump kicks on. City water pressure is constant and usually runs around 60 psi and sometimes as high as 90. As long as you are not using lawn irrigation or any other high volume usage one inch will be more than adequate for an average residence.