Galvanized
You should use black pipe -- Galv. pipe will flake off inside of pipe
yes old galv pipe will flake and the iron will start to rust causing rusty water.
galv metal scotch coat taped joints 12" DEEP .......Poly Pipe 18" DEEP
Yes it can, you may just need a few more fittings to match the galv pipe to the heater inlet.
In any plumbing supply store, but not usually in hardware stores which generally stock up to 3/4 inch, not 1" or more.
Yes, this is often done in well systems by using a mechanical fitting on both. ie, a fitting glued to the PVC, that can be threaded onto the galv. pipe.
New galvanized what ? -Are you talking about galv steel framing ? If so it need no priming. Steel studs are within the wall and do not need any kind of primer or paint.
If it is galv. pipe there could be a small hole on threads. You would have to replace pipe.
There is a problem related to your pressure tank.Impossible to say more without knowing if you have an old 'galv ' tank or a newer bladder type. Please re-submit with more detail on the type, colour and size of pressure tank and detail on the pump.
A pound of 10 penny (10d) galvanized nails typically contains about 30 to 35 nails, depending on the specific size and manufacturer. This variation occurs because the weight of individual nails can slightly differ based on coating and production processes. If you need a precise count, it's best to refer to the packaging or manufacturer's specifications.
New kwila decking will stain when it gets wet.Over time it silvers off and staining ceases.If,however, the stains are around the fixings then could be caused when galvanised nail is punched.Some builders never punch these nails and leave them flush with surface.When the galv.nail is punched,the head of the nail loses the galv(zinc)coating and the ensuing rust reacts with the tannins/oils of the timber,resulting in staining.Eucalypt timber is especially renowned for this.
they come in many-many different sizes, just a few: #2 weigh 2.6 lbs per 10000 #4 weigh 4 lbs per 10000 #10 weigh 10.5 lbs per 10000 3/8" weigh 66.4 lbs per 10000 http://www.fastenersuperstore.com/stores/superstore/step3A.cfm?category=Washers&productCategory=Flat%20Washers&productSubCategory=Machine%20Screw%20Washers%20/%20Steel%20/%20Zinc