Hollyhock Pool Builders Don't Complete the Startup — Here's What They Skip

The pool builder filled your Hollyhock pool, handed you a startup packet, ran through a 10-minute orientation, and drove away. What they did not tell you is that the pool is not finished. The plaster is not cured. The water chemistry is not stable. And the startup process they were supposed to complete — daily brushing and chemical balancing for the first two weeks — never happened. They moved on to the next build. Your brand new pool is already behind.

This is the dirty secret of new pool construction in Frisco's growing subdivisions — Hollyhock, Harvest, Fields, and every other neighborhood with active building. The builders do not complete the startup. They leave it to the homeowner, who does not know it needs to be done. And by the time they realize something is wrong — staining, rough spots, discoloration — the damage to the plaster is permanent.

What a Proper Pool Startup Requires

When a pool is freshly plastered and filled, the plaster goes through a curing process called hydration. During this process, the plaster releases calcium hydroxide (a byproduct of cement curing) into the water. This creates a chemically aggressive environment that must be actively managed for the first 14-28 days.

Daily Brushing — Not Optional

Fresh plaster must be brushed completely — every wall, the entire floor, every step, every bench — once or twice per day for the first 14 days minimum. This is not light brushing. It is aggressive, full-coverage brushing with a nylon pool brush.

Why brushing matters:

Prevents plaster dust accumulation. Fresh plaster sheds a fine calcium hydroxide dust as it cures. This dust settles on the surface and, if not brushed off daily, creates uneven curing — some areas cure under a layer of dust, others cure exposed to water. The result is blotchy discoloration called hydration marks or mottling.

Prevents metal staining. Fill water contains trace metals — iron, copper, manganese. As the plaster cures in the first days, these metals can bond to the porous fresh surface and create permanent stains. Brushing keeps the metals suspended in the water so they can be treated with a metal sequestrant rather than bonding to the plaster.

Promotes even curing. Brushing disrupts the boundary layer of calcium-saturated water that forms at the plaster surface. Fresh water contacts the plaster, allowing the curing reaction to proceed evenly across the entire surface.

Chemistry Management — Multiple Times Per Day

During the first 2 weeks, the plaster is releasing calcium hydroxide into the water continuously. This drives pH up — sometimes above 8.5 — within hours of adjustment. Alkalinity also spikes. Calcium hardness rises daily.

The startup chemistry protocol:

Days 1-3: Test pH and alkalinity 2-3 times per day. Add muriatic acid as needed to keep pH below 7.6. The acid consumption during this period is heavy — sometimes 1-2 gallons per day for a 15,000-gallon pool.

Days 4-7: Test pH daily. Acid consumption begins to slow as the initial burst of calcium hydroxide release decreases. Continue daily brushing.

Days 8-14: Test pH every 2-3 days. Acid consumption is approaching normal levels. Continue brushing every other day. Add metal sequestrant if fill water has iron or copper.

Days 14-28: Chemistry is stabilizing. Transition to weekly service schedule. Continue monitoring calcium hardness — it may still be climbing from residual plaster curing.

Fill Water Treatment

Frisco's tap water contains metals and minerals that interact with fresh plaster. A proper startup includes:

Metal sequestrant added at fill — prevents iron and copper from staining the fresh plaster surface.

No chlorine for the first 48 hours — fresh plaster is porous and chlorine can bleach the surface unevenly, creating light spots. The pool runs on sequestrant and acid only for the first 2 days, then chlorine is introduced gradually.

No salt for 28 days (if salt pool) — adding salt to a pool with fresh plaster before the plaster has fully cured can cause salt crystallization in the porous surface, leading to spalling (plaster flaking) within the first year.

What the Builder Actually Does

Here is what we see from Frisco builders in new subdivisions:

Day 1: Fill the pool. Start the equipment. Hand the homeowner a packet of generic instructions.

Day 2-14: Nothing. They are at the next job site starting the next pool. The daily brushing does not happen. The multiple-daily chemistry adjustments do not happen. The metal sequestrant is not added. The startup protocol is not followed.

The homeowner does not know. They were told "brush the pool once a week" and "check the chemicals." Nobody said "brush twice a day for 14 days or your plaster will stain permanently." Nobody said "test pH three times a day and add acid every time it climbs." Nobody explained that the plaster is actively curing and needs intensive management.

By week 3-4: The homeowner notices something is wrong. The plaster has blotchy spots (hydration marks from uneven curing). The tile has white calcium scale (from unmanaged high pH and calcium). There may be brown or green staining on the plaster (metals from fill water that bonded to the surface because no sequestrant was used). They call the builder. The builder says "that's normal" or "it'll even out." It will not.

The Damage Is Usually Permanent

Hydration marks (mottling): Once set, these blotchy discoloration patterns are permanent in the plaster. No amount of chemistry adjustment or brushing after the curing period will remove them. They are a cosmetic issue that does not affect pool function, but on a $70,000-100,000 pool in Hollyhock, cosmetic issues matter.

Metal staining: Iron and copper stains that bonded to uncured plaster during the first 2 weeks are extremely difficult to remove. Acid washing can lighten them but rarely eliminates them completely. Some stains require resurfacing the affected area — on a pool that is weeks old.

Calcium scale on tile: Aggressive scale buildup from unmanaged pH during curing bonds to tile surfaces. If left for 4-6 weeks, it requires professional bead blasting or acid washing to remove — a $200-500 expense on a brand new pool.

What We Do on New Pool Startups

When a Hollyhock, Harvest, or any new-build customer signs up with us before or at fill, we handle the entire startup:

Days 1-14: Daily visits.

• Brush entire pool surface — walls, floor, steps, benches
• Test pH, alkalinity, and calcium 2-3x per visit
• Add acid as needed (we bring it — no homeowner expense)
• Add metal sequestrant at fill and at day 3
• Monitor plaster curing and adjust protocol based on what we see

Days 14-28: Every-other-day visits.

• Continue brushing on alternating days
• Chemistry testing and adjustment
• Monitor for staining or discoloration
• Begin chlorine introduction at appropriate level

Day 28+: Transition to weekly service.

• Full chemistry panel
• Normal weekly maintenance protocol
• Salt addition (if salt pool) after plaster is fully cured
• Monthly monitoring of calcium hardness as plaster finishes off-gassing

The cost: The startup service is separate from regular weekly maintenance because of the daily visit intensity. But it protects a $70,000-100,000 investment from permanent cosmetic damage that occurs in the first 2-4 weeks if nobody manages it.

What to Do If Your Builder Already Left

If your pool was filled 2-4 weeks ago and nobody did the daily startup:

Test your water now. Bring a sample to the pool store or test at home. Check pH, alkalinity, calcium hardness, and metals. If pH is above 8.0 and calcium is above 400 ppm, the plaster has been curing in aggressive water conditions.

Start brushing immediately. Even if you are past the ideal window, brushing now is better than not brushing. Focus on any areas showing discoloration.

Call a pool service. Get a professional assessment of the plaster condition and water chemistry. If metals are present, sequestrant needs to be added before any shocking or chlorine treatment.

Document everything. If the plaster develops permanent staining or mottling from the incomplete startup, you may have a warranty claim against the builder. The plaster warranty typically requires that a proper startup was performed — document the builder's failure to complete it.

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New pool in Hollyhock, Harvest, or any new Frisco subdivision? Hydra Pool Services handles the complete new pool startup that builders skip — daily brushing, chemistry management, and plaster protection from day one. Start before your builder leaves →