![]() ![]() These pumps also have cutting teeth which will result in more maintenance costs for your client. These pumps have much higher heads which, when misapplied, will result in curve runout and over-pumping with short cycles. This is a specific purpose pump and should not be used in traditional drainage systems. These pumps are designed and intended for use in wastewater applications with a municipal forced main. I have purposely avoided mentioning grinder pumps. These pumps cannot be used for the wastewater applications mentioned above. Sump pumps typically handle little or no solids. If a better pump construction is desired, move to the effluent style pump. Sump pumps are used for the clearer drain tile and rainwater runoff applications. Do not use effluent pumps in toilet blackwater applications. They can be used in graywater and sump pump applications. These pumps normally have better seals and impellers than the small residential sump pumps. In our world, I think of an effluent pump as a larger sump pump. It would be the choice in smaller graywater applications if the drainage water was separated. It can handle smaller solids in the ½” or ¾” size. The effluent pump may or may not have a non-clog impeller. In buildings, it is a lighter duty wastewater pump. In a waste treatment plant, the term effluent has a specific application. Remember, this article is about drainage in buildings. Deppmann sump and sewage product webpages to see the good, better, and best pump differences. These pumps have multiple seal and impeller choices. When lighter duty applications require a larger pump, this may be your only option. In designing plumbing systems in buildings, don’t worry about any size larger than 2”.Ī submersible sewage pump may be used in all the applications: blackwater, graywater, and rainwater. Then it is tested to see what size solid sphere it can pass. ![]() It is engineered to provide a large flow rate with a non-clog impeller. The pump is not engineered to handle 4” solids. ![]() Although there may be some coagulation in larger systems, that is not the answer. I contacted the product line manager at Bell & Gossett for their expertise. How could 4” solids get down the pipe from a toilet? I have the experience of my children and now my grandchildren trying to stuff a 4”solid down the toilet. ![]() I am often asked where to use a sewage pump designed to handle 3” and 4” solids vs. They handle 2” solids or greater in larger applications we typically see in plans and specifications. These workhorse pumps will handle 1-1/2” solids in residential and smaller commercial systems. They typically have semi-open non-clog or vortex impellers. They are used for blackwater applications. Sewage pumps are designed for the worst duty of the three styles mentioned in this article. This water is relatively clear with very small solids if any. This is the small but critical pump in many basements. This is the water that is not absorbed into the soil. Stormwater or Rainwater runoff is very familiar to many homeowners. The only difference in the terms, that I can see, is whether you are from England or the US. Graywater would be easier to treat if recycling for watering lawns. It contains much smaller solids if any at all. It would be the water coming from sinks and showers. Graywater in buildings is generally wastewater that does not contain fecal matter. Typically, this water is flushed from toilets. We know there are many types of water in commercial and institutional buildings.īlackwater is wastewater that contains fecal matter and bacteria which are harmful. Sump pumps may seem too small for an application, a sewage pump may look too large and what is an effluent pump? When selecting the submersible pump for the building trades application, we often find confusion. Plumbing engineers understand the differences in drainage piping systems depending on the source of the fluid. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |