Pure Water ULTIMA 888 Installation Manual download pdf (Page 8)

Getting to Know the Minisoft . . . .

The mini-softener is a small water conditioner which utilizes the same cationic exchange resin as

do larger residential and commercial water softeners.

Most water supplies contain calcium and magnesium ions that are caused by water contacting

limestone in the ground. Calcium and magnesium are often referred to as the hardness minerals.

When hard water is heated, these minerals combine with anions and precipitate from the solution

forming scale. This scale increases the maintenance and decreases the life of your product and

thus, the mini-softener is used to eliminate this scale.

Your mini-softener consists of special resin beads which attract certain ions from the water. When

new, the resin in the mini-softener has sodium ions on it. As hard water flows through the exchange

resin, the calcium and magnesium ions are captured by the resin, while sodium ions are released.

Thus, calcium and magnesium ions are exchanged for sodium ions. (Two sodium ions per one

Calcium or Magnesium ion.)

When there is no more room on the resin beads to attract calcium and magnesium, the resin will

become exhausted and will need to be recharged. This is achieved by passing a highly-concen-

trated salt solution through the resin. Whole-house water softeners have automated controls which

regularly rinse the resin with a concentrated brine.

Because of the relatively small volume of water that passes through the ULTIMA unit, the mini-

softener can last for many months before it needs to be recharged. It has been designed to be

replaced in the field and returned to the dealer for servicing. This makes it simple and inexpen-

sive. It can be recharged and returned to service.

Ion exchange resins should not be allowed to dry out. Hence, new mini-softeners come with small

plugs in the inlet and outlet. If a mini-softener is to be exchanged, it is a good idea to loop a length

of tubing from the inlet to the outlet. This keeps the resin wet and reduces spillage of water.

To calculate the number of gallons that can pass through the Mini-Softener use the following calcu-

lation:

2800 Grains Capacity (of the minisoft)

DIVIDED BY

Number of Grains per gallon in the water

EQUALS

Total number of gallons that the minisoft can soften before regeneration

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Pure Water ULTIMA 888 Installation Manual Page 8