Hydrosphere Series · Semi-Inground to Fully Inground
Round Pool
A simple round pool in five diameters, from 15′ to 28′.
ICC Evaluation Service is the industry leader in performing technical evaluations of building products, materials and systems for code compliance. Due to their diligence and unparalleled engineering experience, ICC-ES is the most widely accepted evaluation agency in the nation.
Code Enforcement officials look for ICC-ES certification when approving permits. This certification can help you get pool structures approved with less hassle AND in more areas! You can be assured you are getting the best and strongest walls in the industry, backed by ICC-ES certification.
The Doughboy Hydrosphere Series Pool is the ONLY 52" Wall, Semi-Inground Pool to receive ICC-ES Certification! Choose the BEST!
Steel wall panels are 14-gauge, rust-resistant, galvanized steel, a more corrosion resistant steel structure.
Meaning it is strong enough to withstand an earthquake.
The Hydrosphere Series Pool is available in 5 different shapes to fit any backyard and style with ease!
Available Sizes: 12' x 24', 14' x 28', 16' x 32', 18' x 36, 20' x 40'
Available Corner Options: 2' Radius, 6" Radius
Available Sizes: 12' x 24', 14' x 28', 16' x 32', 18' x 36'
Available Sizes: 10' x 20', 12' x 24', 15' x 30', 18' x 33'
Available Sizes: 13' x 22', 16' x 28', 18' x 32'
Available Sizes: 15', 18', 21', 24', 28'
Order online or add to a quote. We review quotes within 24–48 hours.
Ships in 7–10 business days by freight, delivered curbside.
Install it yourself with the Installation Guide, or with a participating Doughboy dealer.
Every Hydrosphere shape shares the same walls, coping and finishing options. Here's how homeowners and contractors finished theirs: decks, stone veneer, boulders and more.
Built for Strength
An ICC-ES evaluated pool structure with inground-quality, corrosion-resistant materials. Robust, low-profile bracing keeps the walls stable when part of the pool is above ground, and the structure carries a limited lifetime warranty.
Install It, Then Finish It Your Way
The Hydrosphere is DIY-friendly for experienced homeowners and contractors, and the Installation Guide walks you through installing the pool. Finishing the outside is up to you or your contractor: a deck, pavers, stone, boulders or veneer panels.
Prefer help? If there’s a participating installing dealer near you, we can connect you for an installation estimate.
Each spec sheet has the pool outline layout and a bill of materials for the base kit.
Every pool package includes the 52″ wall system, a 4′-2″ deep flat-bottom liner in your pattern, the skimmer and return, the coping or liner track for your pool type, and steps or a ladder.
Optional: pump & filter, plumbing, insulation kit, top rail (semi-inground), a second entry and an LED light.
15′
5,100 gallons approx.
Spec sheets: Semi-Inground · Inground
18′
7,300 gallons approx.
Spec sheets: Semi-Inground · Inground
21′
10,000 gallons approx.
Spec sheets: Semi-Inground · Inground
24′
13,000 gallons approx.
Spec sheets: Semi-Inground · Inground
28′
17,700 gallons approx.
Spec sheets: Semi-Inground · Inground
Anywhere from a minimum of 24" semi-inground to fully inground.
Only the braces, the liner track or coping, and the skimmer and return, chosen to suit each installation. The structure and everything else are the same. Learn More under Pool Type, when you build your pool, has the details.
Semi-inground pools use the Double F-Track. Fully inground pools use CP2 Bullnose for a poured concrete deck, or Flat Track Cantilever for a cantilevered concrete edge, pavers or stone.
No. The top rail is only available on semi-inground pools, with the Double F-Track. On a fully inground pool, the coping and deck finish the edge.
Pools are made to each order and ship within 7-10 business days. We ship by freight line (an 18-wheeler) and request liftgate/curbside delivery for every pool package. At minimum, the driver will use a hand truck to unload the pallets at the curb, where you can inspect and sign for them. The pallets can be broken down and the parts moved to the job site. It isn't guaranteed, but many freight drivers will use their hand truck to move pallets to a nearby spot if there's flat access (some pallets are quite heavy).
Yes. The Hydrosphere Series is DIY-friendly for experienced homeowners and contractors, and the Installation Guide walks you through installing the pool. Finishing the outside (a deck, pavers, stone or veneer) is up to you or your contractor. Our team is a message away if questions come up.
Yes. If there's a participating installing dealer near you, we can connect you for an installation estimate or consultation: choose a dealer near you when you build your pool. Installation isn't included in the price of the pool package.
Each set of components carries its own warranty. The Hydrosphere pool structure carries a limited lifetime warranty.
Yes, a saltwater system can be used with Hydrosphere Series pools, though we recommend chlorine. Saltwater chlorinators cost more than using chlorine, can be harsh and corrosive on pool equipment, and can make balanced water chemistry harder to maintain.
Yes, heaters can be used with Hydrosphere pools. We don't currently supply them, but some local dealers may have heaters available.
Yes. Permits and fencing are always required for semi-inground and inground swimming pools. Check your local code requirements and permitting office, and follow our pool safety guidelines to use your pool safely.
The walls and braces are 14 gauge USA steel with a proprietary galvanization and coating to protect it from the elements, built to last installed fully in the ground or semi-inground.
No. Each shape is individually engineered, with the bracing and components for its shape, size and options. Choose the shape that fits your style and yard best.
No. Exterior paneling was offered in the past but discontinued, so you can use the wider range of purpose-built finishing materials from local retailers and distributors.
Ready to build your pool?
Choose your size, pool type and coping, then the liner, steps and any add-ons. The price updates as you go.
Questions first? Email a specialist and a team member will get back to you.
Doughboy
Hydrosphere Series Round Pool
Our team can help you choose the right pool or liner for your yard and budget. Send us a message and a team member will get back to you.
