The On-Line calculator enables you to input information about your proposed Rid O'Rust system and determine:

What amount of Rid O'Rust Formula should be put in the feed tank.

How often the feed tank will need to be refilled, given a certain feed rate.

1499 22nd Street North
St. Petersburg, FL 33713
TEL 1.800.347.7487
FAX 727.321.6395

Choosing the Proper Feeder System to Use:

When you have selected your system type and proper Formula
you can use the Rid o'Rust Formula Online Calculator!

SIPHONING SYSTEM OR INJECTION SYSTEM

Your choice of a feeder system is generally based on the type and size of irrigation pump you are using. See our recommendations below based on your irrigation pump type. If you chose an injection system, you must further decide which metering pump to use.

Centrifugal, above ground, up to 2 HP

Our Recomendation: Siphoning system
Pros:
- Simple - no moving parts, easily serviced
- Inexpensive
- Easily installed, no electronics involved
Cons:
- Feed rate set at 1 GPH
- Must refill every 30 hours
Notes: Injection system is an alternative
Centrifugal, above ground, over 2 HP

Our Recomendation: Injection system
Pros:
- More accurate than siphoning system
- Can last up to 240 hours before refilling
Cons:
- Electronics involved in installation
- Moving parts, more complex servicing involved
- More expensive than siphoning system
Notes: Siphoning system is an alternative if you don't mind refilling frequently
Submersible, below ground, any HP

Our Recomendation: Injection system must be used in all cases where a submersible pump is involved.

Injection System (Tank Not Shown)

Siphoning System

Formula | Metering Pump | Back to Dosage Calculator