Use a search engine online and enter the term, crawl space. That will direct you to a professional company that specializes in crawl spaces. You have 2 problems. Let's discuss the crawl space first. Water can not be stopped. It can be diverted properly so it does not end up pn the top of your crawl space. Waterproofing a crawl space is done from inside the crawl space. Trenching around the perimeter, installing 4 inch perforated drain tile. Connecting the drain tile system to a sump pit and a sump pump which will the eject the water properly to the outside thus eliminating your problem. Your yard is a total other aspect. A few suggestions: Your gutter down spouts should extend 6 feet away from your home and hopefully run down hill. If your yard has a lot of standing water you will need to make the area nearest your house the high ground so the water can run down hill using gravity so the water can puddle up as far from your house as possible.
Control the water and you control the mold.
Any water lines in a crawl space that don't have insulated walls should be insulated unless you live in climates that temperatures don't go below freezing (32F). I recommend that you use all the inside walls as much as possible for your water lines. You can also insulate your crawl space walls then you shouldn't have a problem on your non insulated water pipes as long as your crawl space is below your frost line. In colder climates its against code to plumb water lines in exterior walls.
There is no such thing. - You may mean a "crawl space" -this a space under the floors of many wood built homes to enable access to water and electric services. These crawl spaces are usually 2-4 feet high and are very common in north Amrican houses.
if you are racing then it should be a long one. the longer you can hold your breath and keep you face under the water the quicker your time will be because you are more streamlined.
If a hot water pipe is leaking then it will definitely affect the amount of hot water you have, -This is costing you a lot in heating, get it fixed ASAP
The most frequent cause of crawl space odor is moisture, and a common culprit is improperly designed and installed vents, which can allow rainwater to find its way into the space. Replace or repair leaking vents.
Something non flammible
Yes, well sometimes not always. They crawl when they are slipping into the water.
Depends on your basement area. They help divert water that could add excess moisture into your basement or crawl space.
That would depend if the leak was from a potable water supply or toxic raw sewerage or storm water piping
they dont
First of all its Have you ever DONE the watermelon crawl and 2nd, the watermelon crawl is a fictional thing. it was in a song and is in no way a real "crawl or dance"