How Many Gallons is my Pond?

Trying to figure out the best maintenance practices for your water feature is IMPOSSIBLE if you don't know the total gallons of water you're operating. Thus, how to calculate the gallons of your pond is a frequent question we get asked at our Aquatic Retail Store at Dreamscapes Watergardens. If you're reading this and wondering, "Why do I need to know how many gallons of water my pond holds?"...you have some work to do and some blogs to read. Not only is pond volume important to know for water treatment applications, but it's also necessary when considering "How Many Fish Can I Have in My Pond?" and even pond pump and filtration spec. information!

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Pond Volume Calculation

When calculating your total volume of water, you must take into account the set-up of your pond: are there rocks and gravel in the pond and are there plant shelves? Also if you generally have a waterfall running, there is always MORE water hanging out in the plumbing, filtration system and coming down the waterfall at all times.

Take the measurements of your pond by length, width, and AVERAGE depth and plug those numbers in to the formulas below.


No Rocks and Gravel:   Length x Width x Average Depth x 7.48
YES Rocks and Gravel: Length x Width x Average Depth x 7.48 x 0.4

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Standard Pond Volume Calculations:

Below is a rough estimate for typical pond sizes:
4x6    = 300 gallons of water
6x8    = 400 gallons of water
8x11   = 500 gallons of water
11x11 = 700 gallons of water
11x16 = 1000 gallons of water
16x16 = 1500 gallons of water
16x21 = 2000 gallons of water

So Now What???

Now that you know how many gallons of water your pond holds, you can re-evaluate the way that you're applying water treatments, if you have too many fish and even if your pump is big enough to recirculate your water. ALL of these components drastically change the quality of your water and even the health of your fish.

Dreamscapes has a full service maintenance program that travels all over the Lebanon, Lancaster and Dauphin County areas. We also carry a full line of pond supplies from water treatments and fish medications to pond pumps, heaters, fountains, plants and fish! Tadpoles and snails are also available at our Aquatic Retail Center in Lebanon, Pennsylvania seasonally while supplies last from May-August.  If you think you need it, we have it!

Retail Hours:   April 5th-May 27th:         Wednesday-Friday: 10am-5pm; Sat: 9am-1pm
                                                         Mon & Tues: Hours By Appointment
                     May 28th-Nov 25th:        Thursday-Friday: 10am-5pm; Sat 9am-12pm
                                                         Mon, Tues, Weds: Hours By Appointment
                     Nov 26th-April 2018:       All Hours By Appointment


Contact Us 
2155 State Route 343, Lebanon Pa | 717-272-6555 | info@dreamscapeswatergardens.com

Dreamscapes Watergardens services koi ponds and waterfalls in the city of Lebanon, Lancaster, Harrisburg, Mechanicsburg, Camp Hill, Cleona, Cornwall, Fredericksburg, Indiantown Gap, Jonestown, Kleinfeltersville, Mount Gretna, Myerstown, Newmanstown Palmyra, Quentin, Reistville, Richland, Schaefferstown of Pennsylvania, PA

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