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ManualsBrandsKasco ManualsLawn & GardenRobust-Aire 1 Diffused Aeration System — 1.5 Acre Pond Capacity
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OWNERS MANUAL
A trench will need to be excavated to bury the PVC air line. Start by determining the path of the trench from the
Robust-Aire system to an area by shore. The path should be in as straight of a line as possible with a gentle
downward slope from the Robust-Aire system down towards the shore. Excavate the trench 6” to 8” deep.
For two or three station valve manifolds, excavate an area by shore to
bury the included valve box. An area at least 18” wide by 25” long x
13” deep will be needed. Dig the area deeper and add crushed rock to
allow for drainage.
CAUTION: In northern climates where the ground may freeze during
the winter, be sure there are no peaks and valleys in the PVC air line.
Condensation in the air line may freeze and can block the flow of air to
your diffuser and can cause damage to your compressor.
For RA1 – RA3 systems, a single trench is all that is required.
For RA4 – RA6 systems, either a single trench or two separate trenches
may be required depending on pond size and diffuser placement
locations.
Connect brass barb fitting to PVC adapter, applying thread sealant to
male threads on PVC adapter. Connect barb fitting to rubber hose lead
from compressor and secure with hose clamp.
Connect PVC adapter and PVC pipe with primer and glue. Add PVC pipe
sections as needed to reach the location of the remote manifold.
Prime and glue supplied manifold assembly to the end of the PVC pipe
run. Install 3/8” barb fittings or 5/8” barb fittings depending on size of
SureSink™ tubing being run from the manifold to each diffuser. Apply
thread sealant to male threads of barb fittings. Attach SureSink™ tubing
to barb fittings and secure with hose clamp.
When applicable, place valve box over manifold assembly and fill in
around box and entire length of trench with the excavated dirt. The lid of
the valve box should be flush with the top of the ground surface.
When system has been completely installed, use the valves (not
provided on single diffuser systems) to balance the flow to each diffuser.