Installation and Operating Instructions
Camac Submerged Pumps

INSTALLATION & OPERATING INSTRUCTIONS

CAMAC SUBMERGED PUMPS

  1. When installing your Camac submerged pump, it is important to insure proper flow to the pump.  The suction piping should never be reduced smaller than the pump inlet size.  On pump installations requiring an extended inlet line, the suction should be increased one pipe size for every 4 feet of extended pipe, and the extended pipe should not exceed 12'0" in length.
  2. When using an extended pipe or a foot valve on the pump suction, care should be taken to avoid starving the pump.  The bottom of your inlet piping should be 1½ times the diameter of your suction piping off the bottom of your tank.  If a foot valve is used, care should be taken to avoid clogging or a partially opened valve will cause starvation of the pump.
  3. When using your Camac pump as a sump pump, a level control probe should be used to shut the pump on and off.  Your probes should be set to turn the pump off before the solution level reaches the bottom of the pump suction and should also be set for the pump to come on after the liquid level is even with the top of your pump discharge port.

    NOTE:            It is important that the Camac pump never be allowed to run partially dry.  This will cause severe cavitations and destroy the pump.
  1. Camac submerged pumps can only be vertically mounted.
  2. When using a vertical discharge length of more than 2'0" or whenever a foot valve is used on the pump suction, a check valve should be installed as close to the discharge port as possible.  This is important to avoid having the liquid in the discharge line back up the draft tube of your pump when the pump is turned off.
  3. When using your Camac pump as a sump pump with extended suction piping, in order to have the pump continue pumping once the solution has reached the discharge port on your pump, it is necessary to maintain a slight back pressure on the discharge line and extend the pump overflow discharge to the depth of your extended suction pipe.
  4. In order to prevent air locking, it is necessary to install a small diameter air bleed valve on the discharge line below the ball check valve.
  5. To prevent your Camac submerged pump from pulling an unacceptable amount of air through the overflow port it is important/necessary to maintain a slight back pressure on the discharge line and install overflow plug or discharge piping extending approximately 3" to 4" below solution level. 

    NOTE:            Within the final 3 psi a minimum amount of solution will discharge through overflow port.  This eliminates damage to pump caused by excessive cavitations.

    IMPORTANT:            Do NOT plug overflow port is pump is to achieve final 3 psi.


  6. On out of tank installations, the pump should be mounted with the motor at the tank rim level, with the overflow from the pump draft tube plugged or piped over to the tank or to a sump.
  7. A check valve should be installed on both the suction and discharge piping on the pump to avoid drainage from the discharge line losing your prime.
  8. When using the check valves, it is also necessary to install a priming tee in the discharge line.  (see drawing)

    NOTE: Within the final 3 psi a minimum amount of solution will discharge through overflow port.  This eliminates damage to pump caused by excessive cavitations.

    IMPORTANT: Do NOT plug overflow port if pump is to achieve final 3 psi.