Welch Allyn Ear Wash System Directions For Use Manual page 24

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* To properly test suction, follow the steps below:
1. If suction is too low, replace the ear tip. If suction does not improve
go to step 2.
2. Remove ear tip and place handle interface into water. If suction
improves replace handle/hose assembly. If suction does not improve
go to step 3.
3. Make sure hose from handle to black fitting is not kinked and is free
of obstruction. Replace hose if it is kinked. Clean it out if it is
obstructed. If the hose is not kinked or obstructed go to step 4.
4. Check to see if water is flowing freely out of the bottom of the
chamber. If no water is flowing from the chamber replace it. If there
is water flowing go to step 5.
5. Check water faucet pressure/flow rate. Water flow out of the faucet
should be at least 1 gallon per 30 seconds. If the water flow is
adequate there is a blockage in the chamber. Replace chamber. If the
flow is less than 1 gallon per 30 seconds, the water pressure/flow is
inadequate. Move to a faucet with adequate water pressure/flow.
** To properly test water flow, there are a few stages
1. If water flow is too low, replace the disposable ear tip. Make sure the
tab side points upwards. If water flow does not improve go to step 2.
2. Check hose from blue fitting on chamber to handle. Make sure there
are no kinks or obstructions. If hose is kinked, replace hose. If there
are obstructions, remove hose and clean out. If there are no kinks or
obstructions go to step 3.
3. Follow steps 4 and 5 above. Take action as required.
Welch Allyn Ear Wash System