Pool service and repair in Grapevine, TX
Marina Pool Services is based in Grapevine, and the family lives here too. This page covers Grapevine water and the city pool permit sheet that pool owners and contractors work from.
Grapevine pool facts
Local water and pool rules that matter when you own a pool here. Each one links to the city or utility source, checked October 21, 2026.
- Water
Grapevine water supply
Grapevine water comes from the City of Grapevine and the Trinity River Authority, from Lake Grapevine and Lake Arlington. The 2024 report lists hardness of 117 mg/L for the city (about 6.8 grains per gallon) and 135 mg/L for the TRA (about 7.9 grains per gallon). The disinfectant is chloramines.
- Permits
Three permits for new pools
The city pool permit sheet requires electric and plumbing permits and a separate fence permit. The sheet is written for new pools and major work, so it does not settle what a pump or heater swap needs.
- Backflow
Backflow at final inspection
The final inspection checks backflow prevention on the permanent fill line and on all hose bibbs.
- Drainage
Uncovered backwash line
The P-trap and the backwash and drain line must stay uncovered, from the equipment to the sanitary sewer, until the city inspects them.
- Pool barrier
Fence and gates
The sheet requires a fence at least 4 feet high with self-closing, self-latching gates.
- Permits
Outlets and GFCI
One convenience outlet must sit 6 to 20 feet from the water's edge, and all outlets must be GFCI protected. The city inspects the sub-panel before it is energized.
- Permits
Bonding
Bonding covers equipment and metal within 5 feet of the water's edge.
- Permits
Permit expiry and re-inspection
A permit expires 180 days after the last inspection if no final inspection is done, and a re-inspection fee of $50 applies. The sheet may be dated, so confirm with the city at (817) 410-3165 before relying on these numbers.
- Permits
Pool code
Grapevine adopts the current International Swimming Pool and Spa Code as adopted by Texas (Sec. 7-208).
Local pool tips for Grapevine
Grapevine pool questions
Where is Marina Pool Services based?
Marina Pool Services is a family-owned, locally operated pool service company based in Grapevine. The family lives in Grapevine and got its start here. The company provides residential pool maintenance, equipment repair and installation for Grapevine homeowners and nearby Northeast Tarrant County communities.
What does Grapevine check at the final pool inspection?
Grapevine's pool permit sheet says the final inspection checks backflow prevention on the permanent fill line and on all hose bibbs. The backwash and drain line must stay uncovered until inspected. Rules change, so confirm details with Grapevine Building Services at (817) 410-3165 before work starts.
How hard is Grapevine water?
The City of Grapevine reported 117 mg/L hardness in 2024, about 6.8 grains per gallon. Trinity River Authority water was 135 mg/L, about 7.9 grains per gallon. Both are treated with chloramines. Test your own pool water for exact readings.
What fence does Grapevine require around a pool?
The city pool permit sheet requires a fence at least 4 feet high with self-closing, self-latching gates. A separate fence permit is also required. Confirm current requirements with the city before building or changing a barrier.
Pool help in Grapevine
Call or text and tell us what your pool needs. Estimates are free for qualifying services, and same-day estimates are possible when the schedule allows.
