If you’re trying to get a more “built-in” backyard pool look—without committing to a traditional inground project—HydroSphere semi-inground pool kits are designed for that middle ground. Depending on the model and your yard plan, some kits can be installed above ground, while others are designed for semi-inground or completely inground installation. A little FYI about what our HydroSphere pages entail.
What you’ll see on the HydroSphere category page (quick facts):
- 52" galvanized steel with an “Acrylic Alpha Shield” coating called out on-page
- Saltwater friendly
- Limited lifetime warranty
- Free shipping
- Shapes: Freeform, Oval, Round, Rectangle, and Grecian
- Install note: select models can be installed above ground; others are intended for semi-inground or completely inground installation
On-page lineup: shapes, sizes, and examples
The HydroSphere category page shows packaged kits organized by shape. Examples displayed include Freeform, Oval, Round, Grecian, and Rectangle “On Ground” options. Exact availability and pricing can change—use the category page for the current lineup.
Shapes & Sizes:
- Freeform: 13'×22', 16'×28', 18'×32'
- Oval: 10'×20', 12'×24', 15'×30', 18'×33'
- Round: 15', 18', 21', 24', 28'
- Grecian: 12'×24', 14'×28', 16'-6"×32'-6", 18'-6"×36'-6"
- Rectangle: 12'×24', 14'×28', 16'×32', 18'×36', 20'×40' (All with different corner radius options)
Install reality: above ground vs semi-inground vs completely inground
A semi-inground pool project succeeds when you plan it like a "light" construction job: layout first, drainage second, digging last. The HydroSphere pages note that some models can sit entirely on top of the ground like an above-ground pool, while others can be partially or completely buried. It also notes oval pools can be set mostly above ground if preferred.
ProPools practical tip: If water collects where you want the pool after a heavy rain, plan drainage up front or adjust the install height.
Water depth + liner options
The category page describes a standard flat-bottom liner that provides about 48" of water depth. It also states liners are custom made to fit each pool and suggests a tapered bottom may be possible if you’d like a bit more depth.
Design details: top rail + wood deck options
A smoother top edge
HydroSphere highlights a patent-pending radius top railing intended to look and feel more continuous than typical mitered rails.
Thinking about a wood deck?
The pages also mentions an optional approach for deck integration—top rail/coping options designed to pair with deck boards—and notes you can order it for the full perimeter or just part of the pool.
Saltwater-friendly by design (what that means)
HydroSphere’s on-page explanation goes beyond “compatible.” It describes wall panels with a proprietary additive blend that coats the wall (described as patented) to extend life expectancy and support saltwater conditions, paired with lifetime-warranty messaging.
The pages also emphasizes wall strength and discusses panel joint integrity, including a “Spert” rivet reference intended to highlight durability through shifting and freeze/thaw conditions.
Buyer checklist (use this before you choose a kit)
- Drainage: Where does water go during heavy rain?
- Finish plan: Landscape edge, partial deck, or full wrap deck?
- Access: Can delivery and excavation equipment reach the site?
- Code items: Permits, fencing, bonding/electrical requirements
- Exact contents: Confirm what’s included on the specific SKU page
Next step: Browse HydroSphere Semi-Inground Pool Kits on ProPools.com
FAQ
Can a HydroSphere pool be installed fully inground?
Some models are presented as suitable for semi-inground or completely inground installation, while select models can be installed above ground. Always follow the install guidance for the specific kit and plan drainage.
How much water depth do you get?
The category page describes a standard flat-bottom liner at approximately 48" of water depth. Liner configuration can affect final depth.
Are HydroSphere pools saltwater friendly?
HydroSphere is positioned as saltwater friendly by design. Long-term success still depends on proper water chemistry and following equipment guidance.
What shapes are available?
The HydroSphere category page lists Freeform, Oval, Round, Rectangle, and Grecian shapes.