We Replace Submersible Pumps- August 14, 2008 We just got done replacing another submersible pump. This pump was inside a 4" PVC well and was a 3hp (horse power) 50 gpm (gallons per minuet) pump that was hanging on 1&14" schedule 80 PVC drop pipe. This pump's power source was supplied with standard residential 1 phase power, not commercial 3 phase electrical which I have worked with on occasion.Every 20 feet was an 1&14" galvanized threaded coupling. The well was approximately 360' feet and the pump was hanging 160' feet down in...http://www.autolawnsprinklers.com/2008/08/we-replace-submersible-pumps Pulling and Replacing Submersible Pumps- August 12, 2008 Today we replaced a 3hp 50 gpm (3 horse power 50 gallons per minute) submersible pump. The well the 362 feet deep. The pump was hanging on the standard 20 foot sticks of 1&14" schedule 80 PVC. The pump drop pipe was only hanging 160 feet. The depth to the water table was close to 90 feet.We replaced the old pump and 12-gauge solid strand twisted 4 wire. The colors are red, black, yellow, and green. The type of sub pump that we use is called a "3 wire motor" even though there are four...http://www.autolawnsprinklers.com/2008/08/pulling-and-replacing-submersible-pumps Stuck Foot Valve- August 9, 2008 I'm about to go to remove a stuck foot valve from a 2" PVC well. The foot valve hangs on 1&14" schedule 40 PVC drop pipe and has a jet close to the bottom of the drop pipe. The well is about 50 feet and the drop pipe is only about 35 feet.The foot valve assemblies here are assembled with pieces called spring dogs & rubber packers which expand to help hold prime with the foot valve. Some contractors use "leathers" to hold prime, but the leathers tend to break down sooner over time and...http://www.autolawnsprinklers.com/2008/08/stuck-foot-valve Rotors Vs. Spray Heads- August 7, 2008 The two most commonly used type of heads in automatic lawn sprinkler systems are either rotor rotary style heads or spray heads that do not rotate. Rotors rotate or move and thus have a lower precipitation rate than spray heads. In other words it takes a zone of rotors longer to apply the same amount of water per square foot than fixed spray heads.Spray heads do not rotate and have a higher precipitation rate. That is they get the area watering quicker or faster. It is common sense really....http://www.autolawnsprinklers.com/2008/08/rotors-vs-spray-heads |