(a)
- (1) Protect the site prior to and after the installation of the drip system.
- (2) Activities on the site shall be limited only to what is necessary for the installation of the system.
(b)
(1) Any clearing or grubbing shall be performed based on a site-specific plan that:
- (A) Minimizes the disturbance of the soil; and
- (B) Protects the overall soil characteristics.
(2)
- (A) It may be necessary to use flexible PVC tubing to work around or over objects in the dispersal field.
- (B) However, the number of emitters shall not be reduced.
- (c) Drip tubing shall not be installed when the soil is wet or frozen.
- (d) Drip tubing shall be installed on contour.
(e) Flexible Schedule 40 PVC tubing shall be used at each manifold connection to:
- (1) Provide additional crimping protection; and
- (2) Prevent the tubing from being pulled out of the supply or return manifold as the soil settles.
(f)
- (1) Drip tubing shall be taped, plugged, or capped when cut.
- (2) All piping shall be taped or capped at the end of the construction day.
- (g) PVC pipe cutters that cleanly shear the pipe or tubing shall be used rather than sawing the pipe or tubing.
(h)
- (1) Complete flushing of the supply line prior to the connection of the drip tubing shall be performed.
- (2) Sufficient volume of water shall be used to ensure all debris is removed from both the supply line and the drip tubing.
(i)
- (1) A start-up system check shall be performed before the system is placed in operation.
- (2) All operational functions that would be expected during routine operations shall be performed in a specified time period of not less than twenty-four (24) hours.
(3) This operational test shall include but not be limited to:
- (A) Timed dose functions;
- (B) Volume loading;
- (C) Flow rates;
- (D) Pressures at the inlet and outlet of each zone;
- (E) Pressures at the inlet and outlet of filters;
- (F) Leak detection;
- (G) Flushing; and
- (H) Alarms.
- (j) Repairs or modifications shall be made to eliminate any wet spot.
(k)
- (1) The establishment of a vegetative cover is critical to the overall performance of a drip dispersal system.
- (2) The dispersal area shall be covered with sod or mulch as soon as possible after the installation of the drip tubing.
Codification Notes: "PVC" means polyvinyl chloride.