Real sunlight matters
Solar output changes with real sunlight, shade, season, and panel placement.
Reassurance
Use these tools with confidence
Guidance, not a guarantee
Use these results as planning help before you buy, not as an exact guarantee.
Sizing up is often safer
When you are between sizes, sizing up is usually easier than correcting a tight fit later.
Support is here
If your setup is oversized, irregular, or unusual, POPOSOAP support can help.
01
Pond Volume Calculator
Pond volume first
Best next step
Quick estimate before fish, filtration, or liner planning.
For quick gallon estimates before fish, filtration, or liner decisions.
Calculate Pond Volume
Use your pond shape, core dimensions, and maximum depth to estimate how many gallons your pond can hold.
Use this as a starting number only. Real gallons may be lower once rocks, shelves, plants, and equipment take up space.
Your result
Estimated pond volume
See your estimated pond volume in gallons, plus the shape and dimensions used in the calculation.
What you will see
Your estimated pond volume will appear here
Add your pond shape and dimensions to see the estimated gallons and the dimensions used in the formula.
- Estimated gallons
- Shape and dimensions used
- Quick note before you move on
02
Fountain Calculator
Decorative water movement
Best next step
Match spray style, depth, and sunlight in one quick pass.
For birdbaths, patio bowls, and small decorative ponds.
Find the Right Fountain Setup
Tell us the spray look you want, your water depth, sunlight, and battery preference.
Best for birdbaths, patio bowls, and smaller decorative ponds.
Your result
Your fountain recommendation
See the best-fit setup, product picks, and sunlight notes here.
What you will see
Your fountain recommendation will appear here
Complete the form to see the best-fit setup, product picks, and a few planning notes.
- Best-fit setup first
- Recommended products and add-ons
- A few notes and next steps
03
Waterfall Calculator
Backyard cascade setup
Best next step
Match spillway width, lift, and water style before you shop.
For spillways, pond edges, and small backyard waterfall builds.
Match the Right Waterfall Kit
Tell us your spillway width, lift height, water style, and power preference.
Best for spillways, pond edges, and small backyard waterfall projects.
Your result
Your waterfall recommendation
See the recommended kit, matched products, and a few planning notes here.
What you will see
Your waterfall recommendation will appear here
Add your setup details to see a matched kit, product links, and planning notes.
- Recommended kit first
- Recommended products and add-ons
- A few notes and next steps
04
Fish Planning Guide
Fish load and pond support
Best next step
Review stocking pressure, circulation, and support needs fast.
For fish load, circulation, and the support your pond may need.
Check Fish Load and Pond Support
Use fish type, count, adult size, and pond dimensions to check fish load and the support your pond may need.
Planning tool only. Real fish capacity still depends on filtration, aeration, water quality, fish growth, and routine care.
Your result
Your fish load result
See your estimated fish load, support notes, and next steps here.
What you will see
Your fish load result will appear here
Add fish type, count, adult size, and pond dimensions to see a fish-load estimate and support notes.
- Your fish load first
- Recommended products and add-ons
- A few notes and next steps
05
Liner Calculator
Build and rebuild sizing
Best next step
Estimate a safer liner fit with overlap guidance.
For measuring, sizing up, and protecting pond edges before installation.
Calculate Liner and Underlayment Size
Estimate a safer liner and underlayment size before you build or rebuild your pond.
Sizing up is usually easier than coming up short. Freeform and irregular edges still need a manual check.
Your result
Your liner recommendation
See the recommended size, overlap guidance, and next steps here.
What you will see
Your liner fit will appear here
Complete the form to see a recommended liner size, overlap guidance, and underlayment notes.
- Recommended size first
- Recommended products and add-ons
- A few notes and next steps
FAQ
Before you buy
Use these answers to understand how the tools work, when to trust the result, and when it makes sense to ask for help.
Are these results exact?
No. These results are planning guidance based on the details you enter. Real performance and fit can still vary with sunlight, pond shape, lift, tubing, water depth, maintenance, and installation conditions.
When should I start with pond volume first?
Start with pond volume if you want a gallon baseline before fish planning, filtration, aeration, or liner decisions. If you already know your gallon range, you can jump straight to the calculator that fits your project.
Why does sunlight matter so much for solar fountains and waterfalls?
Solar output changes with real sunlight, season, panel angle, and shade. That means spray height, flow strength, and runtime can vary through the day, even with the same product.
Do you still sell separate backup battery packs?
No. This guide no longer recommends or routes to standalone battery pack accessories. If you prefer battery support, look for POPOSOAP products with built-in battery backup.
Is the fish module a strict stocking rule?
No. It is a planning tool, not a biological guarantee. Real fish capacity still depends on filtration, aeration, water quality, fish growth, and long-term care.
Should I buy liner and underlayment together?
Yes, in most cases. The liner provides waterproofing, while geotextile underlayment helps protect it from punctures caused by rocks, roots, and rough ground.
Should I size up if I am between liner sizes?
Usually yes. Sizing up is safer than ordering the exact minimum, especially for freeform ponds, deeper edges, or builds that need more shaping room.
When should I contact POPOSOAP support instead of relying on the calculator?
Contact support if your setup is oversized, irregular, heavily shaded, between product ranges, or if you are unsure how lift, spillway width, fish load, or liner overlap should be handled.
Need help before you buy?
Get a second set of eyes on sizing, setup, or fit
Talk to POPOSOAP if you want help reviewing pond gallons, fountain spray, waterfall lift, fish load, or liner size before you buy.
Sizing support
Setup questions
Manual review help
Share your pond size, lift, fish load, or liner questions and POPOSOAP will help you narrow down the right fit.