38
main
Because Java takes only string values
Answering this question leaves a lot of unknowns; 1) Is this in the basement, in the floor, under concrete, or, going to be. 2) Is this on a main level, above a basement (Not a crawl space!). And 10 more questions! There is some planning, but, could be trying to answer 25 different scenario's, as much supplied info. will help. For a short answer to keep it simple, the answer is, yes, you can!
That totally depends on how many houses there are, and what the pressure in the water mains is. The smallest allowed where I work is an 8" diameter water main, but 10" and 12" are common, too.
1/2 inch copper/plastic pipe is standard for water2" water main then the branches are sized to properly supply fixture unit demand with out excessive velocity which can cause erosion and hydraulic shock
16 of them.
a cold water main should be a minimum of 3/4" and to figure the right size of main you will need to look up in the UPC and figure out all your fixture units and PSI and elevation
1/16 per inch BUT the pipe must be at least 8" diameter and then only 1440 Fixture units can be connected If you increase pitch to 1/2" per ft then you can go up to 2300 fixture unites
38
The check valve is a directional valve. Hot water needs to be piped from the top of the tank to the fixture, because that is where the hottest water in the tank is. If a return line is tied into the bottom of the tank, a directional valve (check valve) should be installed between the heater and the pump. That's what they taught me don't know if it really matter upstream or down stream. If you don't have a check valve the water could flow through the return line to the fixture instead of through the supply pipe and the water at the fixture might not be hot enough.
In most countries, the law clearly states that any fixture which draws water and comes from a live main feed shall always have a water shut off valve.
40
That depends on the number of fixture units in the house. Usually, your county or city building inspector can show you how to count up fixture units according to the local building code. BUT . . . if you have a normal house with 2 toilets, a shower, a bathtub, and 3 sinks, you might need a 3/4-inch water service. In my town, the minimum size is 1-inch, so that if you add anything in future years, the meter and pipe will deliver sufficient flow at a good pressure. If your house is very large and there is an irrigation sprinkler system, then it might turn out that a 1-1/4-inch or even a 1-1/2-inch meter and pipe would be necessary.
Your main concern in installing anything near a water line is to avoid accidentally driving a nail or screw into the pipe, causing a leak. Therefore it is prudent to allow a separation of at least a few inches. Other than that, there is no reason why a light fixture cannot be close to a water line. The wires are insulated, so they are not going to short circuit as a result of the metal pipe.
There is no one item..Sizing the proper size of a water main one has to calculate the fixture unit demand . A fixture unit is one cubic foot of water (7.48 gallons) and each fixture is given a rating then one has to figure in friction losses through piping and fittings and developed lengh. To much velocity you will have erosion and lots of noise plus hydraulic shock (water hammer) to little allowances for the demand and you can experience a severe pressure / volume drop
10,784 drains can be connected to a main vent give or take depending on the fixture units and the developed lenght 10,784 drains can be connected to a main vent give or take depending on the fixture units and the developed lenght