Water stagnation occurs when water stops flowing. When this happens it can become an environmental hazard. Too much standing water that isn’t draining can damage flooring and foundations, as well as creating a perfect breeding ground for mosquitoes that are known to carry very harmful diseases.
When drains are blocked and cleared timely, your health and the structural security of your home is at risk. Whether from your kitchen sink, shower or toilet, when water drains from fixtures it’s likely already dirty. If your pipes can’t release that water from the property, usually due to a blockage, the water will get even dirtier, the blockage will worsen and cause the water to become stagnant.
Water can become stagnant in as little as 24 hours, mold and bacteria also begins to grow within 48 hours. Mold can colonize within 12 days. This rapid growth will continue and go unseen for days if you are unaware of the stagnant water.
Stagnant water has little dissolved oxygen in it and is a prime breeding ground for bacteria. Pools of water, such as those sitting in the back of an infrequently flushed toilet tank, become stagnant as the oxygen works its way out of the water and is not replaced. The only way to prevent water from becoming stagnant is to aerate it. This can be accomplished through good water circulation.
Standing water does not emit an odor on its own. The odor associated with stagnant water arises from organisms or vegetation that cannot survive in the water. Because scavengers cannot live in the water, the plants and other organisms rot. As more organic matter begins to rot in the stagnant water, the smell gets worse. Stagnant water odor becomes fouler with time, because more organisms die.
As the saying goes, when it rains, it pours. If days of wet weather or a sudden violent summer storm inundates your property with too much rainfall, flooding may occur. While your yard might seem to drain off the water that pools throughout it, flooding anywhere on your property may lead to serious issues if not attended too quickly. If you’ve ever gone out into your yard and found a muddy or wet spot, or even a puddle, you’ve experienced the effects of standing water. Of course, there have likely been times when your entire yard was muddy or wet which is, of course, normal. However, if that wetness is isolated to one or two spots in an otherwise dry yard that means you likely have a drainage problem.
We recommend keeping the drains clear of blockages to be sure water flows continually to avoid standing water.
Sources: Wikipedia, Irrigation Outlet