does osha have a rule governing the placement of fire extinguishers on forklifts?
i read that galvanised piping was diy, i think your find the installers were called pipe fitters, not plumbers.. i would replace the pipe work with copper, not plastic. the reason is copper joints seated properly will last for many years, plastic push fits still have to show how long they will last ? remember rubber decays with time, at the same time i would look at possibly up grading your heating system etc as you will have a lot of flooring up anyway.
Galvanized gets old and decays. It rusts on the inside until eventually, the inner diameter of the pipe is closed up, and hence the volume of water available is almost nil. The average life of buried galvanized pipe is about 40 years, depending on your water quality. If you get 60 years out of it, your lucky. Copper pipes don't rust. They do get more brittle as they age, and more susceptible to breakage from freezing and such. And it is expensive. In fact, the price has skyrocketed for some reason. I've heard different stories as to why, but don't know for sure which is true. Anyway, you might want to look into replacing your galvanized pipes with Pex piping. It's a fairly new plastic piping that is actually really amazing. I'm from the old school of construction so I tend to stick to the tried and true, but me and a plumber friend of mine, who was trying to sell me on Pex piping did our own laboratory tests on the stuff and it passed with flying colors. I was sold. The only test we couldn't do was the test of time. So, good luck in whatever you decide to do.
Galvanized steel will rust and corrode even though it is galvanized ( a layer of zinc is applied to the steel to resist corrosion upon the steel). So after 40 years your galvanized water pipe will have a pretty good layer of rust and corrosion and joints may begin to leak after a time. It definitly is not neccessary to change the water piping just because you have galvanized steel. However depending on the age of the house the pipes may be nearing the end of their lifespan - so to avoid a leak which could cost much because of flood damage - you would be wise to change the piping over before that point. So it's not absolutely neccessary but it is recommended if the galvanized steel is quite old (like say 35 years or more). If you are going to change the piping you will want to use PEX tubing nowadays instead of copper. It's safe for drinking water, 3 times as fast as copper because with copper each joint needs to be heated and soldered, and as a result is much cheaper- also cheaper because copper in itself is quite expensive. Depending on the size of the home (multi-level/crawlspace/attic/open or finished basement etc.) you could be looking at anywhere from $1500 CDN to $5000 or more. Generally the more access we have the quicker and cheaper it will be. A smallish rancher with a nice open crawlspace would be about $1500 and take a couple of days for one plumber to re-pipe. And hey, if you lived in Victoria BC Canada I could do it for you. lol. Have a nice day. As far as PEX being no good for UV exposure and having high maintenance costs - that is only if the plumber is too cheap to buy the red and blue UV resistant stuff.
My exe and dad are plumbers, but I'm not sure. It might be as you say, but I doubt it is a concrete rule. I don't know what it would cost to convert. Call a plumbing supply or plumbing service. They both hate Kohler because they are such pains in the butt to repair Now what he might be saying is that in the rough out, the measurements were done for Kohler brand stuff, so that might be the deal.