Bridging the GAPs: Approaches to Treating Water On Farms

Regardless of the pump type you choose, these systems have some considerations in common.

Sanitizer Makeup

• Sanitizers can be highly corrosive to incompatible materials

• Materials used in the pumps should be rated to withstand extended exposure to these sanitizers

• Off-gassing in some materials for example hydrogen peroxide and peroxyacetic acid can cause some pumps to seize (ex. Diaphragm pumps).

Pump location

• Pumps should be positioned near a power supply.

• Ideally they would be housed in a protective cabinet or housing, to maximize working life of the pump.

• Limit exposure to rain, wind, dust increases pump life

• Pups operate with lines pressurized and could result in blowouts if the lines fail.

Ultraviolet l ight

Ne xt, let’s review the basic components of a UV light system, as discussed in Module 2.

Outer Case – This is a tube, typically stainless steel, that is used to keep the light from the UV bulb contained.

UV Bulb – This is what generates the light at the correct wavelength to inactive microorganism (see module 2 for details).

Quartz Sleeve or Quartz – A glass tube that surrounds the bulb and prevents the water flowing on the outside of it to come in contact with the bulb itself. It’s critical that the quar tz be maintained in a clean way, free from algae and debris, in order to maintain the effectiveness of the UV treatment. Water Inlet and Outlet – The ports in the outer vase, through which water enters and leaves the UV treatment system. The manufacturer will have guidelines on how to orient the outer case in order to maximize treatment effectiveness.

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