At some point, every Gilbert pool owner faces a situation where it is time to drain pool water completely. Whether your water chemistry is beyond saving or your pool needs a deep acid wash, a full drain is sometimes the right call. However, many homeowners are unsure what the process involves or what it typically costs.
Understanding the factors behind pool draining helps you make a smarter decision for your budget. Additionally, knowing when to drain versus when to treat can save you both time and money. In this guide, we walk you through everything you need to know.
Valley Pool Service works with homeowners across Gilbert, Mesa, Chandler, and Queen Creek to keep pools clean and properly maintained. Furthermore, our technicians are happy to inspect your pool and recommend the best path forward — whether that includes draining or not.
Why Would You Need to Drain Your Pool?
Most pools do not need to be drained every year. However, certain conditions make it necessary. Knowing the signs helps you act before small problems become expensive ones.
High Total Dissolved Solids (TDS)
Over time, minerals, chemicals, and debris build up in your pool water. This buildup is called Total Dissolved Solids, or TDS. When TDS levels get too high, your water becomes difficult to balance no matter how many chemicals you add. As a result, draining and refilling becomes the most effective solution.
In Arizona, our hard water speeds up this process. Because of this, Gilbert pool owners often need to drain their pools more frequently than homeowners in other states.
Severe Algae or Green Water
Sometimes a pool turns so green that standard chemical treatments cannot fix it efficiently. In these cases, draining the pool and performing an acid wash gives you a clean start. Additionally, it removes staining and algae that clings to the plaster walls.
This is common after a pool is left untreated for an extended period — especially during the brutal Arizona summer months.
Plaster Repair or Resurfacing
If your pool needs replastering, resurfacing, or significant structural repair, the pool must be fully drained first. Therefore, the draining cost becomes part of a larger renovation project. It is important to factor that into your overall budget planning.
What Affects the Cost to Drain Pool Water in Gilbert?
Pool draining costs vary based on several key factors. There is no single flat rate that applies to every pool. Instead, professionals assess your specific situation before providing a quote.
Pool Size and Volume
Larger pools hold more water, which means the draining process takes longer. Moreover, more water requires proper disposal, which can affect the overall cost. A smaller pool will generally cost less to drain than a large custom pool with deep ends and water features.
Most residential Gilbert pools fall within a common size range. However, if your pool is larger than average, expect the service time and cost to reflect that.
Method of Draining Used
Professionals typically use a submersible pump to drain pool water quickly and safely. The type and size of pump used can affect how long the job takes. Furthermore, some pools require special handling to avoid hydrostatic pressure issues — a situation where groundwater pushes up against an empty pool shell and can cause cracking or popping.
In the East Valley, soil conditions vary by neighborhood. Therefore, experienced technicians assess the risk before proceeding with a full drain.
Water Disposal and Local Regulations
Gilbert and surrounding cities have guidelines on how pool water must be disposed. For example, chlorinated water cannot simply be dumped into the street or a storm drain. Instead, it must be dechlorinated or directed to the sanitary sewer system properly.
A professional pool service handles this correctly. Additionally, they know the local rules for communities in Gilbert, Chandler, and San Tan Valley to keep you compliant.
Additional Services Performed During the Drain
Many homeowners combine a pool drain with other services like an acid wash, tile cleaning, or equipment inspection. These additional services add to the total cost but often make good sense when the pool is already empty. In other words, you get more value by bundling services together into one visit.
Talk with a pool care expert about which combination of services makes sense for your pool’s current condition.
Typical Cost Ranges for Pool Draining in the Gilbert Area
While we do not quote a single fixed price here, we can share some general guidance on cost ranges. Prices differ based on the factors listed above and on the specific company you hire.
- Basic drain and refill: Generally falls on the lower end of the service cost scale for standard-sized pools
- Drain with acid wash: Costs more due to the labor and chemical materials involved
- Drain with full replaster prep: Part of a larger project and priced accordingly
- Emergency or same-week drain: May carry a premium depending on scheduling and availability
Moreover, the cost of water to refill your pool is a separate consideration. Gilbert water rates apply, and refilling a pool uses a significant amount of water. Therefore, budget for both the service and the refill when planning your project.
Request a free quote from Valley Pool Service to get an accurate estimate based on your specific pool size and condition.
How Long Does It Take to Drain a Pool?
Most residential pools can be drained within a few hours using a professional submersible pump. However, the total time depends on pool size, pump capacity, and how the water must be routed for disposal.
After draining, any planned work — such as an acid wash or tile scrubbing — adds additional time. Then, refilling a pool typically takes anywhere from a day to two days depending on your home’s water pressure and the pool’s volume. Planning ahead helps avoid leaving your pool empty for longer than necessary.
Why You Should Not Leave a Pool Empty Too Long
An empty pool is vulnerable to damage. In Arizona, the intense heat and sun can crack and blister pool plaster quickly. Additionally, as mentioned, hydrostatic pressure from groundwater can lift or shift the pool shell.
Because of this, professionals always aim to complete the drain, perform the necessary work, and begin refilling as quickly as possible. Do not drain your pool without a clear plan in place for what happens next.
DIY Pool Draining vs. Hiring a Professional
Some homeowners consider renting a pump and draining their pool themselves. While this is possible, it comes with real risks. For example, improper draining can damage the pool structure, violate local water disposal rules, or void your pool’s warranty.
On the other hand, hiring a licensed pool professional ensures the job is done safely and correctly. Furthermore, a professional can spot other issues while the pool is empty — things like cracks, failing returns, or corroded fittings — that would be easy to miss otherwise.
For most Gilbert homeowners, the peace of mind and proper execution make professional draining well worth the investment.
Frequently Asked Questions About Pool Draining in Gilbert AZ
How often should I drain pool water in Arizona?
Most Arizona pools benefit from a drain and refill every three to five years. However, high usage, hard water, and chemical imbalances can shorten that timeline. A professional water test helps determine when it is time.
Can I drain my pool into the street?
No. Gilbert and most East Valley cities prohibit draining chlorinated pool water into storm drains or streets. Professionals handle proper disposal in compliance with local regulations. Always hire someone who knows the rules.
Is it safe to drain pool water during Arizona summer?
Draining during extreme heat carries added risk to your pool’s plaster and shell. Therefore, many professionals recommend draining in spring or fall when temperatures are more moderate. However, if draining is urgent, a professional can take precautions to minimize damage.
What is an acid wash and do I need one?
An acid wash removes deep staining, algae, and mineral deposits from pool plaster. It is typically done when the pool is drained. Not every pool needs one, but it is highly recommended when staining or severe algae is present. A technician can assess your pool’s surface and advise you accordingly.
Does draining my pool reset the water chemistry?
Yes — a full drain and refill gives you a fresh start with clean water. This is especially helpful when TDS levels are too high to manage chemically. After refilling, your technician will balance the new water to the correct levels.
Trust Valley Pool Service to Handle Your Pool Drain the Right Way
Draining a pool is not something to take lightly. Done correctly, it sets the stage for a clean, well-maintained pool that lasts for years. Done incorrectly, it can cause structural damage and costly repairs.
Valley Pool Service proudly serves homeowners in Gilbert, Mesa, Chandler, Queen Creek, and throughout the East Valley. Our experienced technicians know Arizona pools inside and out. We will evaluate your pool’s condition, explain your options clearly, and get the job done right.
Whether you need a simple drain and refill or a full acid wash and equipment inspection, we are ready to help. Contact Valley Pool today to schedule your service visit and get a free, no-pressure quote from our friendly team.
