Parts used. 1/2 pipe to 1/2 barb. 1/2 pipe 90. Washers. 0-rings. Threaded section 1/2 pipe. 1/2 pipe to 1/2 copper compression fitting. 1/2 copper tube. Remove tank. Cut hole in tank. Attach compression fitting to copper pipe. Cut to length so draw tube is 1/4 from bottom of tank. Slant or notch bottom of draw tube. Screw the rest together. Works great. Would have used sump but the bottom of my tank makes frequent contact with rocks, vegetation and the occasional honda.