A GRIDCOOLER® that is clean inside and out will dissipate heat most efficiently. To keep your unit clean, a periodic check of the cooling system is recommended. What follows are some ways to clean your GRIDCOOLER.

EXTERIOR

If your GRIDCOOLER is used regularly, the 90/10 copper/nickel alloy in conjunction with the unit's operating temperature will tend to keep the exterior of the unit relatively free of marine growth. However, if the GRIDCOOLER is not in operation for extended periods of time, marine growth may result. Below are some ways of removing marine growth, paint, etc. from the exterior of your GRIDCOOLER:

1. Scrape:

Scraping is an effective way of removing larger matter from a GRIDCOOLER. The use of a rectangular instrument works best.

2. High Pressure Water Blast:

This cleaning method is effective in cleaning many things off of a GRIDCOOLER (paint is a notable exception)

3. Sandblast:

Sandblasting a GRIDCOOLER is also very effective, but very fine sand such as 40 to 60 grit blasting media at a maximum blast pressure of 90 psi (6.21 BAR) should be used.

NOTE: Never sandblast an ALUMINUM GRIDCOOLER.

INTERIOR

The interior of your GRIDCOOLER may need periodic cleaning to remove oil, old glycol, mineral deposits, etc. The easiest and most convenient way of doing this is the use of a radiator flush. Contact your engine dealer for the proper radiator flush type for your engine.