CPVC tubing is ideal for water supply lines. It's easy to cut and assemble, using compression of cemented fittings. It's durable too. Harsh water won't harm the material, unlike copper, which will erode from acidic water. This article demonstrates how to cut, join and run CPVC water lines. You get high quality results, without the copper soldering chore.
A very easy to build, inexpensive, CPVC liquid (hydronic) solar hot water collector that you can use to heat your home or for domestic hot water. This collector is significantly outperforming my pex collector in testing so far. Enjoy free heat, courtesy of the sun!