Acid Neutralizer Installation Information

• Step 1: Install the Sand/Gravel and Calcite (also known as Limestone - food grade).
  (If Sand/Gravel is already installed, then go to Step 2)
  • Unscrew (counter clockwise) the fill plug on the XPI tank manifold. The fill plug is just to the side of the IN and OUT ports. Do not unscrew the entire tank manifold from off of the tank. Using a funnel (you can make a funnel or buy a $2 oil funnel locally)
  • Pour the approximately 15 pounds of Sand/Gravel into the 10" x 44" tank.
  • Next, pour the entire 90-100 lbs. of Calcite into the 10" x 44" tank. The Calcite and the Sand/Gravel together will only fill the tank 3/4 full. This is correct. During a backwash, there needs to be room for the Calcite to move inside the tank. Put the fill plug back, tightening clockwise until snug. DO NOT OVER TIGHTEN.

• Step 2: Install the two 3/4" mipt x 1 1/4" Manifold adapters
  • Use PTFE thread sealing tape (3 or 4 wraps around) on the 3/4" male threads of the manifold adapters.
  • Use PTFE thread sealing tape only on the 3/4" side of the adapters.
  • Carefully screw one of the two manifold adapters (3/4" male) into the "IN" port and one into the "OUT" port on the XPI tank manifold. DO NOT OVER TIGHTEN.

• Step 3: Determining IN and OUT ports for Down flow setup.
  • Looking down on the XPI Manifold with the fill plug on the XPI manifold towards you, in front of the two ports "IN" and "OUT". The "IN" port is on the LEFT and the "OUT" port is on the RIGHT.

• Step 4: Install the CAF Manual control valve.
  • The CAF Manual control valve has two female swivel nuts attached to the valve. The two swivel nuts will screw onto the two manifold adapters. DO NOT USE PTFE thread sealing tape on the male 1 1/4" manifold adapters.
    
  • The 1 1/4" male adapters have an "o ring" that seals them to the swivel nuts. Directly above each of the swivel nuts are arrows. The swivel nut with the DOWN arrow will screw onto the IN port. The swivel nut with the UP arrow will screw onto the OUT port.
  • Tighten the swivel nuts clockwise. Make sure to tighten evenly by screwing one side a couple of turns, and then the other side a couple of turns until snug. DO NOT OVER TIGHTEN.

• Step 5: Connect piping to the House.
  • On top of the CAF control valve are two 1" Male NPT pipe threads. There are arrows below the male threads. The DOWN arrow is the INLET and the UP arrow is the OUTLET. Connect your piping accordingly. The 5-gpm Dole valve (3/4") needs to be installed on the INLET side of the Acid Neutralizer. Fittings (not provided) will be needed to adapt the Dole valve to and from your piping and to the CAF control valve.

• Step 6: Install the Drain
  • The CAF control valve has a 1/2" female drain port on the opposite side of the control valve handle. The unit will discharge water out of the drain during a backwash. The discharging water will have the same pressure as your normal household water pressure, so the drain line will need to be secured. You will need to connect piping and run this to an acceptable drain using appropriate back flow prevention.

• Step 7: To put the neutralizer into service
  • Put the CAF control valve in the backwash position. Turn on the water supply to the neutralizer very slowly and keep it at a slow flow. The tank should take at least 10 minutes to fill completely up. As it is in the backwash position, the water will fill the tank from the bottom up. As the tank fills, water and air will exit out of the drain. The water will be cloudy at first. When the water running from the drain is clear and running freely, (not spitting)
  • Slowly turn the CAF control valve to the service position. Turn on a faucet in the house and run water until it is running free and clear (expect it to take quite a few minutes).

Note: Make sure the 5-gpm regulator is installed BEFORE the neutralizer. This will ensure the Backwash does not flow faster than 5gpm. Water enters through the top of the unit, flows through the media, then through the gravel, and then travels up the distributor tube. Customer should backwash when pressure gets low, only for approximately 5 minutes. Backwashing instructions are on the knob handle of the Controls-a-flo valve. An Acid Neutralizer creates hardness, so you might consider installing a Water Softener directly after it.

• Step 1: Install the Sand/Gravel and Calcite and Corosex.
  (note that our Calcite is also known as food grade Limestone, if Sand/Gravel/Calcite/Corosex is already installed, then go to Step 2)
  • Unscrew (counter clockwise) the fill plug on the XPI tank manifold. The fill plug is just to the side of the IN and OUT ports. Do not unscrew the entire tank manifold from off of the tank.
  • Using a funnel pour the 13-15 pounds of Sand/Gravel into the 10" x 44" tank.
  • Next, pour the entire 45-50 lbs. of Calcite and also the 28-30 lbs. of Corosex into the 10" x 44" tank. The Calcite/Corosex and the Sand/Gravel together will only fill the tank 3/4 full. This is correct. During a backwash, there needs to be room for the Calcite/Corosex to move inside the tank.
  • Put the fill plug back, tightening clockwise until snug. DO NOT OVER TIGHTEN.

• Step 2: Install the two 3/4" mipt x 1 1/4" Manifold adapters
  • Use PTFE thread sealing tape (3 or 4 wraps around) on the 3/4" male threads of the manifold adapters.
  • Use PTFE thread sealing tape only on the 3/4" side of the adapters.
  • Carefully screw one of the two manifold adapters (3/4" male) into the "IN" port and one into the "OUT" port on the XPI tank manifold. DO NOT OVER TIGHTEN.

• Step 3: Determining IN and OUT ports for Down flow setup.
  • Looking down on the XPI Manifold with the fill plug on the XPI manifold towards you, in front of the two ports "IN" and "OUT". The "IN" port is on the LEFT and the "OUT" port is on the RIGHT.

• Step 4: Install the CAF Manual control valve.
  • The CAF Manual control valve has two female swivel nuts attached to the valve. The two swivel nuts will screw onto the two manifold adapters. DO NOT USE PTFE thread sealing tape on the male 1 1/4" manifold adapters.
  • The 1 1/4" male adapters have an "o ring" that seals them to the swivel nuts. Directly above each of the swivel nuts are arrows. The swivel nut with the DOWN arrow will screw onto the IN port. The swivel nut with the UP arrow will screw onto the OUT port.
  • Tighten the swivel nuts clockwise. Make sure to tighten evenly by screwing one side a couple of turns, and then the other side a couple of turns until snug. DO NOT OVER TIGHTEN.

• Step 5: Connect piping to the House.
  • On top of the CAF control valve are two 1" Male NPT pipe threads. There are arrows below the male threads. The DOWN arrow is the INLET and the UP arrow is the OUTLET. Connect your piping accordingly. The 5-gpm Dole valve (3/4") needs to be installed on the INLET side of the Acid Neutralizer. Fittings (not provided) will be needed to adapt the Dole valve to and from your piping and to the CAF control valve.

• Step 6: Install the Drain
  • The CAF control valve has a 1/2" female drain port on the opposite side of the control valve handle. The unit will discharge water out of the drain during a backwash. The discharging water will have the same pressure as your normal household water pressure, so the drain line will need to be secured. You will need to connect piping and run this to an acceptable drain using appropriate backflow prevention.

• Step 7: To put the neutralizer into service
  • Put the CAF control valve in the backwash position. Turn on the water supply to the neutralizer very slowly and keep it at a slow flow. The tank should take at least 10 minutes to fill completely up. As it is in the backwash position, the water will fill the tank from the bottom up. As the tank fills, water and air will exit out of the drain. The water will be cloudy at first. When the water running from the drain is clear and running freely, (not spitting)
  • Slowly turn the CAF control valve to the service position. Turn on a faucet in the house and run water until it is running free and clear (expect it to take quite a few minutes).

Note: Make sure the 5-gpm regulator is installed BEFORE the neutralizer. This will ensure the Backwash to not flow faster than 5gpm. Water enters through the top of the unit, flows through the media, then through the gravel, and then travels up the distributor tube. Customer should backwash when pressure gets low, only for approx. 5 minutes. Backwashing instructions are on the knob handle of the Controls-a-flo valve. An Acid Neutralizer creates hardness, so you might consider installing a Water Softener directly after it.