
Originally Posted by
Chris Chappell
Another way to think about the CWA is that it was meant for the huge companies, corporations and municipalities that were dumping hundreds or thousands of gallons of liquids into the bodies of water per minute, not per day, week or month.
When you compare this to most guys out there pressure washing with 8gpm or 5.5gpm or even with 2 or more machines, the difference is huge compared to big businesses or municipalities.
I was talking to our water guy when putting in a bid a month ago and the average water consumption for my city (population is 275254 I think) was anywhere from 92,000,000 gallons per day to 135,000,000 gallons per day. I did not ask because I don't think he had the waste water numbers of how many gallons of effluent water (stuff that goes to waste water, filter out the crap and other trash and then processed and treated) goes out into our bay on a daily basis.
Something I learned in Geology class in a field trip is that by federal law when the municipality is at 80% capacity or more, they can dump a huge % of untreated effluent (filtered, trash removed but not treated 100% like normal effluent) into the bay at any time they need to. This is one of many, many reasons I don't go into the bay water, tell everyone I know to not go in there or go fishing in that part of the water in this area.
When you think that maybe 1/4 of the water people use end up in the waste water system (not sure of actual numbers but since we are in a 100 year drought, not everyone can water their lawns like they used to) I am guessing that 1/4 of the water people use now ends up in waste water, that would be at least 23,000,000 gallons per day possibly or more going into the bay after it is filtered and treated.
That comes to 958,333.333 gallons per hour or 15,972.222 gallons per minute that can be dumped into the bay every minute. I don't think it works that way, I think that they reach a certain level in tanks and then dump a lot all at once but this shows you in comparison to pressure washing how insignificant we really are compared to a city we live in and how much effluent water is dumped in the local bay.
When you look at those huge numbers, the 5.5gpm or 8gpm will never reach the bay if it did hit the storm water drains as most of the piping is miles and miles long and you would have to be working all day long for even a small percentage of that water to ever reach the bay if you did send it down the storm water drain.
When you think realistically, in a drought or just summer time, those pipes are empty and usually have some trash and dirt in them from just the wind blowing (we are the 4th windiest city here in Texas) so there will always be dirt, sand and trash in the storm water drains so that is more stuff to absorb wash water (if you were to send water into the storm water drains) and the diameter of most of the storm water drains is 36" diameter up to the new piping that is going in all over town that is 6' or 8' square concrete blocks making up a new drain system (I forgot how big those concrete blocks are but they are huge) so now it takes even more water to even start puddles in these pipes and then to saturate the dirt/sand/trash in the pipes to make water to move toward the bay takes even more water to do so.
Now you are talking hundreds and hundreds of gallons of water just to start water flowing in the pipes toward the bay via storm water drains. Not sure about you but not too many jobs I do take that long, that are anywhere close to storm water drains (everyone knows about Ron teaching everyone here about dry wells) on commercial properties as it is a federal law since 1986 so there is hardly any chance for any wash water to make it anywhere close to the bay, let alone get wash water into the bay if you were dumping into the storm water drains.
When you think about this logically and understand how much water needs to be in the pipes (remember the pipes are dry because of the South Texas Heat plus the 100 year drought we are in) just for wash water to start moving towards the bay, you will still have water evaporating in the pipes as they are warm to hot just sitting there under the roads that are hot from the daytime sun so it takes even more water to get close to the bay if you were to be dumping into the storm water drains. So realistically, if you were washing in town, you would have to have many rigs running all day long to maybe have any water reach the bay if any made it there at all due to the evaporation and absorption at the jobsite, amount needed to saturate the pipes for water to start flowing and continuous evaporation in the pipes along the way, it makes no sense to think that pressure washing is polluting anything anywhere as we are cleaning up areas to keep more dirt/trash/debris from entering the storm water system as it is.
Then you have the stupidity of the "hot water is an emulsifier" nonsense that someone out there is spewing out trying to make regulations more strict. This is not mentioned anywhere in the Clean Water Act as if it was anywhere to be even remotely true, the specialists back then would have put it in the CWA so everyone would know that hot water washing is so detrimental but this is another false notion that someone out there is trying to get people to believe in to make things harder for us as contractors.
Another stupid thing is that "Hot water will kill marine life" nonsense, more stupidity and nonsense. Think about it, think about how much water it would take just to reach the bay via storm water pipes, after they are saturated so water will flow after leaving the property, after the property absorbs a lot of the water and a lot of water evaporates, how much hot water will ever reach the bay? ? ? Not a drop as water is cooling after it leaves the hot water coil, slowly cooling but still cooling.
Add to this the ambient temperature of the concrete you are washing, the concrete absorbs a lot of heat from the hot water and absorbs more as the water runs down away from where you are washing, the ambient temperature of the surfaces is absorbing the heat of the water plus the temperature outside is cooling it plus if any wind is blowing, that is helping cool it a little bit as well.
To be an idiot and think that the hot water will stay hot in miles and miles of underground piping with no insulation is just idiotic to say the least. That is like saying a hot cup of tea is going to stay hot all day long and into the nite because it started off hot. There are many factors here like the ambient temperature of the surface the water is on, traveling on, water being absorbed into the surface, water evaporating on the jobsite, water contacting pipes and releasing more heat, wind blowing thus cooling down water some as it travels, the amount of water needed to saturate the pipes before it can start moving, the amount of water to saturate the dirt/sand/trash inside the pipes before it can travel more, etc.....So much would have to be done before the water can even move inside the pipes and then now expecting hot water to stay hot for a long time, traveling over ambient temperature surfaces with wind blowing on the water and surfaces, etc.... It is just stupid in so many ways to think that any hot water would ever reach the bay is just very ignorant and stupid as I cannot find other words to describe this level of intelligence.
Even if you had insulated pipes, there would be a loss in heat along the way and it would be cool by the time it reached the bay if it ever did get there. Even if you had "Top Secret Alien Technology" insulation for the pipes, unless you had steam tracing on the pipes to keep them hot the whole way, the water would still get there cool if it ever got there due to the many factors repeated over and over (for the stupid people that think the water will stay hot the whole time and have never had a hot cup of tea or coffee sit on the counter for a while and experienced it cooling down on it's own, yes it is a miracle how that happens to some people out there but to the rest of us, it is called heat loss, cooling down, heat exchange or many other words to describe this normal thing but to some, it is a miracle and needs to be on tv, internet and many videos on youtube to share with the world) so people out there with no clue or intelligence will understand how hot water will not stay hot forever and will not travel miles and miles in pipes when doing most jobs out there.
Hope I did not type too much but sometimes I am passionate about things like this as there are many stupid people with agendas out there trying to hurt our way of life.
Bookmarks