Holding Tanks

Holding tanks collect waste discharge. Sizes range from 25 gallons to 1000+ gallons. Larger holding tanks are often used in place of a septic tank. The difference between the two is that a holding tank is completely self contained, whereas a septic tank has a leech field which allows the liquid to run-off into the surrounding ground area. Some states view servicing septic tanks as a different job than servicing holding tanks. In California, for example, septic tanks are defined as containing hazardous materials - which requires the service technician to be HazMat certified. The material in a holding tank, however, is not deemed hazardous material. Therefore, HazMat training is not required for portable sanitation service technicians.

Holding Tank
Five Peaks Holding Tank

A sales trailer on a new home development site is a good example of holding tank use. The standard would be two 250 gallon holding tanks: 1 for graywater collection (from restroom and kitchen sinks) and 1 for blackwater collection (human biological waste).

Most portable sanitation service providers will have 250 gallon holding tanks in their inventories. However, special orders can usually be met very quickly. If possible, it is a good idea to have the portable toilet company that will be servicing the units do the installation. That way, the set up is done in a way best suited for servicing.

When it comes to differences between manufacturers, a holding tank is a holding tank is a holding tank. As with most portable sanitation products, they are made with high density polyethylene (HDPE). Colors vary, but since the tanks are usually underneath a structure color really doesn't matter. The most important part of the holding tank is the connection. Leakages, although rare, can happen . and the service provider should be notified immediately. To prevent run-off, leakage problems need to be rectified ASAP.

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