Jandy DEV Series, Installation And Operation Manual

Page 8

Figure 7.  Filter Clamp Ring Assembly

"T" Nut

Thread ed 
Rod

Tightening 
Nut w/
Shoulder

Clamp Ring, 
Closed Position

GAP NOT TO EXCEED 
1/16"

Figure 6.  Filter Clamp Ring

Clamp
Ring

Tightening 
Nut w/
Shoulder

Use a 9/16" Socket 

Clamp Ring

“T” Nut and 
Threaded Rod

Tightening Nut 
w/ Shoulder

           WARNING

NEVER

 operate the 

fi

 lter system at more 

than 50 psi of pressure. Operating 

fi

 lter 

system in excess of 50 psi can cause 
product failure or also cause the 

fi

 lter lid to 

be blown off, which can cause death, seri-
ous personal injury or property damage.

WARNING

Changing the two (2) or three (3) port diverter valve 
handle while there is pressurized air in the system 
can cause product failure or also cause the 

fi

 lter 

lid to be blown off, which can cause death, se ri ous 
personal injury or property damage.

Caution

Dust released during normal handling of diatomaceous 
earth can cause eye and respiratory irritation. Prolonged 
breathing of excess concentrations of dust may cause 
lung damage.

Caution

Never 

operate the 

fi

 lter in excess of three (3) 

minutes without use of diatomaceous earth (DE). DE 
is the substance that 

fi

 lters the water, the 

fi

 lter cloth 

merely supports the DE. Operating without DE will 
damage 

fi

 lter grids and short en 

fi

 ltering cycles.

Caution

DO NOT

 operate the 

fi

 lter at water temperatures 

above 105° F (40.6° C). Water temperatures above 
the manufacturer's recommendations will shorten the 
life span of the 

fi

 lter and void the warranty.

5. After 

the 

fi

 rst week of operation, check the 

clamp and retighten if necessary.

6. Check 

the 

fi

 lter clamp at least once a month. 

Section 4. Start-Up and Operation

4.1  Preparing Diatomaceous Earth

Your 

fi

 lter requires diatomaceous earth (DE) for 

proper 

fi

 ltration and operation. The 

fi

 lter grids must 

be precoated with DE in order to protect their sur-
faces and provide the most ef

fi

 cient 

fi

 ltering action. 

Refer to Table 2 for the proper quantity of DE to use 
with your 

fi

 lter.

1. 

Using a one (1) pound coffee can, 

fi

 ll the can 

with diatomaceous earth (DE). Do not pack or 
compress the DE into the can. 

2. 

Mix the required amount of DE with suf

fi

 cient 

water in a separate bucket to make a thin, milky 
mixture (slurry). 

NOTE

  Excess DE will clog the system. Use amount 

speci

fi

 ed in this manual. 

3. 

Use the following instructions to coat the 

fi

 lter 

grids.