PeakOfPerfection
New member
I've been fairly active on the Facebook forum but thought this might help some folks here as well. I run a roof cleaning company as well as power/soft washing. We've always run open vehicles. But earlier this year I had the opportunity to get an NPR at a price I just could not pass up. In doing the research on running enclosed, the same issue kept coming up...SH (Sodium Hypo) fumes, particularly in Roof Cleaning operations where the volume of material cause significant issues with rotting out of truck bodies and trailers. So, I knew there had to be a way to build a system were fumes were never an issue.
What I came up with is a fully sealed, externally vented and filled tank system. I've posted it on a few forums and had a lot of questions about the plumbing system and how it works. So I made a short video explaining it. Hopefully this will help anybody who is building a new setup over the winter, wants to go enclosed but hasn't due to the fume issues, or has a current enclosed setup and doesn't want to deal with the rot. If you run just power washing ops, you won't need near as much material onboard as a roof cleaning op, but the same design still follows.
A safety note...if you plan on doing alkaline (Hypo, Hydrox) and also have acids onboard, the vent system should be completely separate between the two. Do NOT share a common vent line. I also suggest you use two different sized fill line connectors so there is never any chance you accidentally mix acid and alkaline in the same tank and cause a big boom. What isn't seen in the video are some 5 gallon wall mount auxiliary tanks that will hold acid, more surfactant, etc. that will be connected into the different DS injectors. We'll use dedicated injectors for each to make sure no mixing ever happens.
What I came up with is a fully sealed, externally vented and filled tank system. I've posted it on a few forums and had a lot of questions about the plumbing system and how it works. So I made a short video explaining it. Hopefully this will help anybody who is building a new setup over the winter, wants to go enclosed but hasn't due to the fume issues, or has a current enclosed setup and doesn't want to deal with the rot. If you run just power washing ops, you won't need near as much material onboard as a roof cleaning op, but the same design still follows.
A safety note...if you plan on doing alkaline (Hypo, Hydrox) and also have acids onboard, the vent system should be completely separate between the two. Do NOT share a common vent line. I also suggest you use two different sized fill line connectors so there is never any chance you accidentally mix acid and alkaline in the same tank and cause a big boom. What isn't seen in the video are some 5 gallon wall mount auxiliary tanks that will hold acid, more surfactant, etc. that will be connected into the different DS injectors. We'll use dedicated injectors for each to make sure no mixing ever happens.