Desert Landscape Irrigation Design: Hard-Piped Drip vs. Spaghetti Tubing

Two Contractor Proposals

1. Spaghetti tubing from manifolds on trunk line. One zone front, one back. Low-flow emitters for succulents on same zone.
2. Hard-piped Schedule 40 PVC to each plant with self-cleaning drip heads. Two zones: cacti/succulents separate from other plants. $900 more.

Recommendation: Hard-Piped with Separate Zones

Choose Option 2. Cacti/succulents need water every 2–3 weeks in summer, none in winter. Other shrubs need weekly in summer, biweekly in winter. Separate zones allow precise scheduling and water savings.

Critical Upgrade: Flexible Risers

Request 1/2" flexible PVC with male adapters instead of rigid Schedule 80 nipples. Rigid nipples crack as roots grow; flexible risers absorb movement.

Emitter Quality

Specify Bowsmith emitters — industry best for reliability and self-cleaning.

Cost Optimization

Ask Contractor 1 to bid Option 2's zoning (separate cactus zone) with spaghetti tubing. Bid should be within $500 of Option 2. Then choose hard-piped for durability.