News & Stories from Romtec Utilities
Romtec Utilities designs and supplies pump and lift stations for all types of applications. One key aspect of the pump station engineering is determining the appropriate “active volume” for the pumping system. The active volume describes the volume of water in the well where the pumps are actively pumping. This volume is located between two elevations monitored by level sensors. The top level sensor tells the control panel to cycle a pump on while the
Romtec Utilities commissions each of its pump stations with a start-up technician. The role of this technician is to start the pump station for the first time and to test the functionality of the system to make sure it functions per the system design criteria. One of these tests is called the draw down test. The draw down test is conducted to measure the pumping rate in order to verify that the pumps will operate
Romtec Utilities designs, supplies, and fully integrates pump stations, control panels, and other systems into site-built control buildings. A recent lift station project for the Gossamer Grove residential development in Shafter California needed a control building to house electrical controls for a new wastewater lift station. This project included many requirements from several agencies, and Romtec Utilities supplied the complete lift station and control building integrated into a packaged system. The City of Shafter has
Romtec Utilities designs, manufactures, and supplies wastewater lift stations for all types of projects and water pumping scenarios. Designing a functional wastewater lift station can sometimes include unique design challenges. One fairly common example of a design challenge is integrating mixing and/or water agitation to the pumping system. Adding a mixer or agitator can be useful under the right conditions, and it is important to understand what conditions these devices handle, benefits they can provide
Romtec Utilities designs pump station retrofit packages for many different applications, from wastewater to booster pump stations. One frequent area of interest for pump station retrofit projects is replacing an aging hatch on the wet well and/or vault structures. There are many reasons to replace a hatch, but typically, the best solution is replacing the entire top slab for concrete wet wells or vault structures with the hatch. This type of retrofit process can tremendously
Comments 8
I am looking for a lift station to handle a 120 lot development (single family). It is about 450 feet with an up hill elevation of 15 feet
Author
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Our Sales Team will be in contact with you soon.
looking for a storm drain pump system
vertical lift is 30 feet
horizontal push after lift is 50 feet
need to move approx 100,000 of water a day during the monsoon season.
its for a large storm basin collection area to be pushed up to a road and accross the road to another basin to be used for golf course irrigation.
its an alternate solution to replaceing a culvert 30 feet under the road that has colapsed.
Author
John,
Thank you for reaching out to Romtec Utilities! A representative will be in contact with you soon.
Sincerely,
Romtec Utilities
I need to design the sewage sump pits and pump calculation for a car parking building. This building is of 5 levels below grade level.
Author
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Curiosity Engineering… Is this sound engineering and what is your estimation of what the Pumping Rate and Wet Well volume should be?
Thank you…
Existing Condition:
77,000 gallons per day – Pump Station incoming flow
250 GPM pumps with 72′ TDH (Cornell Pumps)
500 gallon wet well volume (stated to be undersized)
6″ DI Force Main approximately 1000′ length
Notes: Flow monitoring is not available at this pump station, but based on a typical peaking factor of 3.8 at the average daily flow, a peak hourly flow of 227 gpm is estimated, which is approximately 90% of the 250-gpm pump capacity.
Proposed Condition:
131,000 gallons per day, (soon to see) and 151,200 future additional Flows (20 yr buildout)
350 GPM pumps with ? Total Head (currently proposed)
a peaking factor of 3.8 is recommended, for a design-year peak hourly flow (PHF) of 350 gpm.
A minimum flow velocity of 2 feet per second is recommended to prevent solids deposition in the force-main. Since the Pump Station uses a 6-inch diameter force-main, a minimum flow rate of 180 gpm is recommended. The proposed 350-gpm design flow is enough to provide a velocity of approximately 4 feet per second.
700 gallon Wet Well Proposed & normal working storage range should limit pump cycles to no less than 5 minutes (to prevent damage to the pumps or motors)
Same approximate Static Head using current 6″ DI 1000′ long Force Main (no upgrade planned)
Proposed pump station should make use of submersible solids-handling pumps.
Question: Does this Pumping Volume seem adequate and is this Wet Well volume of 700 gallons seem adequate ? Is Pump Cycle Time questionable?
David Ring
802-253-2161
Author
Thank you for your comment. Romtec Utilities will be in touch with you soon.