I have running water in the country was made via plastic pipes 16 mm. They have a lot of disadvantages: they are expensive fittings, pipes need to remove the winter (they burst, if they remain water and burst, if remain without water), rubber gaskets in fittings to crack and impossible to buy spare, thin tube and the flow of water through them insufficient.
On my mother's cottage, I saw made my brother cottage water.
Water pipes made of HDPE (High Density Polyethylene) 25 mm. Such pipes brother even used for connecting the pump to the well in place of the hose.
I spoke with my brother and found that to give it a very good solution: pipes and fittings cheap, 25-mm tube allows pump a very large flow of water pipes can not clean up the winter (water with his brother survived three winters), disassemble and assemble the system very quickly.
Leroy Merlin has bought in tubes and everything you need. 25 meters of pipe 25 mm worth 782 rubles (there is a pipe of 20 mm for 600 rubles and 32 mm tube twice as expensive). Fittings are from 37 to 87 rubles.
On the tube says: "POLITEK PE100 SDR 13.6PN12.5 25X2.0 DRINKING".
There are fittings for pipe connections 1/2 ", 3/4", 1 "(37 rubles. "Dad," 50 rubles. "Mom"), pipe couplings (77 rubles.), Corners (87 rubles), tees, taps.
It seems that this is the best option for the country house.
© Alexey Nadozhin