Due to their larger pore size, primary or first filters create less restriction to the low vacuum created by the diaphragm drillpresstable pump. The canister base may have a clear window to see water in the fuel and a drain cock in the bottom drillpresstable of the housing to drain the water. Remember, if you find excessive sludge in the primary filter, the engine may be running over-loaded or have an overheating problem since carbon is developing from fuel burning drillpresstable in the injector nozzle.Secondary filters that follow the transfer pump have smaller pore sizes to filter the finer dirt and carbon particles. They also may have a water drain or service drain hole. Hitch up the 1690 and one of our high-capacity 1910 Commodity Carts and see what it''s like to seed 400 acres per drillpresstable day--with up to 270 bushels behind you, you won''t drillpresstable be refilling anytime soon. A single rank of our new 90 Series Openers sits at the business end. Paired with our active hydraulic down-pressure system, these'' openers can cut drillpresstable the toughest no-till rubble or glide through the cleanest, best-prepped seedbeds, placing seed at a precise, consistent depth.The 1690 CCS gives you many of the same features as the 1690, but with the bulk seed carrying capacity of our new Central Commodity System. CCS tanks carry up to 100 bushels of seed, drillpresstable eliminating the need for a Commodity Air Cart. Underneath the tanks, the maintenance-free CCS Seed Metering System delivers seed directly to the openers for unmatched population rate control.
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