INSTRUCT MANUAL

DE FILTER OPERATION

PAC FAB SKIMMER OPERATION

1. Vacuum pool:

A. Remove skimmer basket.

B. Assemble vacuum head, hose, and pole and place in pool.

C. Fill hose with pool water and insert hose end in the back of hole of skimmer.

D. Turn on pump.

E. When finished, reverse order of instruction.

PUMP: Take the lid off the pump, remove strainer and empty. This should be checked at least every two weeks. The lid is removed by unscrewing in a counter clockwise direction. Lubricate O ring with silicone periodically.

NOTE: Skimmer is controlled by three way Jandy valve when floor system is installed. Adjusted by National Pool representative.

2. To drain pool below skimmer:

A. Call National Pools (727) 868-9593

CHLORINATOR OPERATION

Directions for use:

Before start up of your chlorine dispenser, your pool/spa should be properly conditioned and have a chlorine residual of approximately 1.0 to 1.5 PPM. Follow dealer and chemical manufacturer'' directions and instructions.

The chlorine demand for pools and spas varies based on use, temperature, sunlight, etc. Initially, you'll have to experiment to determine the proper amount of chlorine and the correct adjustment required for your pool and filter time cycle. Using a 10,000-15,000 gallon pool as a guide, we suggest you place about 2 large eroding Sustain tablets in the tablet dispenser to increase or decrease the amount of chlorine. Check chlorine residual daily and adjust for proper level.


CAUTION ** READ CAREFULLY
This chlorine dispenser is designed to use only slow eroding calcium based tablets. NEVER MIX WITH OTHER TYPES OF CHLORINE OR CHEMICALS. EXPLOSION OR FIRE MAY RESULT. Damage to filter and heating system will occur if TRICHLORO-S-TRIAZINETRIONE tablets are used.

Exercise extreme caution when opening or servicing your dispenser. Always shut off your pump. Do not inhale fumes from any chemical dispenser or container. Protect your eyes, skin and clothing for chemicals at all times.

Always read label and carefully follow chlorine manufacturer's and dealer's recommendations for proper water conditioning and daily chlorine requirements for your particular pool and area.


CHEMICAL BALANCING

This is one of the most important parts to keep your pool looking new. With the test kit provided you will be able to test for chlorine and PH. Any additional tests can be done at the pool supply store when you purchase your chemicals. You should have it tested at least every other month for cyanuric acid, total alkalinity, calcium hardness, and any other test your pool supply store finds necessary.

The chlorine should be kept at no less than 1.0 or more than 3.0 PPM according to your test kit and .4-.5 PPM when a Vision system is installed.

The PH should be maintained around 7.4-7.6 PPM on the test kit. Should your PH test out above 7.6 PPM, you will need to lower it by adding muriatic acid or dry acid depending on the alkalinity reading to the pool. This should be done with the pump running, adding 8 oz. to the deep end of the pool, away from any fixtures. Let the pump run for 1 hour and test PH again. If the PH is still high, add more acid accordingly until PH is in the proper range. Remember no more than 8 oz. of acid at a time.

If the PH is low, (below 7.4 PPM), you will need to raise it by adding soda ash. You can purchase this at any pool supply store and the container will have instructions on how to use this chemical.

We will gradually add chlorine to the water after the pool is full. We also add stabilizer and calcium chloride if needed when we start up the filter system. Balancing of the alkalinity reading is done over a period of weeks by adding muriatic acid, which will be the responsibility of the homeowner.

Keep your pool and equipment clean. Vacuum pool and clean baskets at least once a week. Any rubber O rings should be lubed every month with water lube or compatible lubricant.

CAUTION
When using a copper based algicide, some staining of the marcite may occur. To avoid any problems, please contact National Pools service office at (727) 868-9593 or any qualified pool service company for answers to your question.


PREVENTIVE MAINTENANCE

** DO NOT add chlorine or acid to pool water next to ladder or rail. Concentrated chlorine, acid and stainless steel are not compatible.

DO NOT expect rails/ladders on indoor pools to react to chlorine the same as those outdoors. Due to chlorine vapors trapped indoors, the tendency for discoloration of indoor rail goods will be greater; therefore, the frequency of cleaning should be increased. Regardless of environments, discoloration may occur if cleaning is infrequent or not at all. We recommend occasional polishing with a cotton type cloth to retain the original stainless luster. In the event of discoloration or rust, a metal polish found in any auto or marine store will work very well.

Stainless steel rail goods need periodic maintenance. By looking after the surface condition on a routine basis, you will greatly improve the chances of a long and "bright" life for your stainless rail goods.

WARNING: Marcite finish will not be warranted for pitting, discoloration or etching. These conditions occur due to chemical imbalances in the water over short periods of time which National Pools has no control over. Some etching is normal due to the caustic nature of chlorine and acid. To help prevent staining, a metal sequestering agent should be maintained weekly at levels of 12-14 PPM.

WARNING: It has been found, through recent studies, the use of stabilized base chlorine tablets causes an incorrect alkalinity reading. This discrepancy has contributed to some etching problems.


MAINTENANCE SCHEDULE

Time clock hours: Eight (8) hours in summer
Four (4) hours in winter

Filter cleaning once a month in summer and once every other month in the winter.

PLEASE NOTE: Your pool must be shocked or oxidized once a week in summer and once every two weeks in the winter. When using the Sustain chemical program, summer shield must be added every 5 months to help prevent algae.

When using the Vision purification program oxidize pool once a week in summer and maintain proper levels of algicide 60 to help prevent algae infestation. Please use non-chlorine shock when oxidizing pool. Replace Vision cartridge every 6 months. Call National Pools for replacement (727) 868-9593.

National Pools recommends that your chemical readings should fall in the following ranges:

Chlorine 1.5-3.0 (0.5-1.0 Vision) PH 7.4-7.6
Alkalinity 80-120 Cyanuric Acid 60-80
Calcium Hardness 200-400

Please retain all testing records for future reference.


DE FILTER OPERATION

Starting the filter: Be sure filter drain plug is closed. Open air relief valve at the top of filter. Set slide valve to filter position. Open suction and return valves. Prime and start the pump. Air in the piping system will automatically vent through the air relief valve. Close air relief valve when a steady stream of water emerges. When there is a steady flow of water returning to the pool, the filter is ready for pre-coating. DO NOT operate the filter for more than a minute or two without the DE pre-coat.


PRE-COATING

Gradually add the correct amount of Diatomite/DE into the system through the skimmer. Note and record the pressure gauge reading after the diatomite has been added. This is the "pre-coat" or "clean" pressure.


FILTERING

Filtration starts as soon as the filter has been pre-coated. As the filter removes dirt from the pool water, the accumulated dirt causes a resistance to flow. As a result, the pressure gauge will rise and the flow will decrease. When the pressure rises 8-10 PSI above the pre-coat pressure it is time to backwash (clean) the filter.

NOTE: During the initial clean-up of the pool, particularly with a new pool, it may be necessary to backwash more frequently due to the unusually heavy initial dirt load in the water.

CAUTION: To prevent unnecessary strain on piping system and valves, always shut off pump before switching filter slide valve positions.


MAINTENANCE INSTRUCTIONS CELLULAR MEDIA FILTER

Remove and clean or replace cellular media as outlined below when pressure gauge reading increases 10 PSI above clean starting pressure.

1. Stop pump and open air relief valve. Remove the drain plug.
2. Remove locking ring and tank lid.
3. Remove cellular media assembly by lifting handle on support tube.
4. Remove cellular media from support tube and clean as necessary to remove debris.
5. Clean and remove debris from inside the tank and from the O ring and O ring grove.
6. Replace clean cellular media on support tube and install assembly into the filter body
7. Replace tank lid, making sure it is fully and firmly seated on tank body.
8. Replace locking ring, turning it only until it hits the stops on the filter body.
9. Be sure all plumbing valves are open before the pump is turned on.
10. Open the air relief valve, stand clear of the filter and turn on the pump. The air relief valve should remain open until a steady stream of water flows and all air is expelled from the filter tank.