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today were cleaning out condensate drain lines and you can use a shop vac at the outside to suck the water out you could also wrap electrical tape around the compressed air tip and you want to push that into the trap and use 30 psi to blow it out in this case you see a clear trap and this is the point where it normally clogs that inside the trap and you can use a brush to pull through the trap in order to clean it out if you have an open section of horizontal drain line you can use half inch pvc in the little 90 to suck it out with the shop vac in this case you see half inch cpvc attached into the vacuum and were sucking the trap out with the vacuum in this case were blowing the trap out with the exhaust of the vacuum here we have clear vinyl tubing and were going to be blowing out the trap just using the pressure from our lungs in this case were using 30 psi of nitrogen to blow it out and now were changing the tip to get down deep into the trap and you can use clear vinyl tubing
