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Gravity fed pond bio filter | up to 12,000l

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PRODUCT DETAILS

Gravity Fed Pond Bio Filter | Up to 12,000L

This Gravity Fed Pond Bio Filter is designed to make pond filtration easier to understand and maintain, even if you’re setting up a pond filtration system for the first time.

The basic idea is simple: a pond pump sends dirty pond water into the filter, the water passes through several stages of filtration, and the cleaned water flows back to the pond by gravity. Because the return relies on gravity, the filter should be positioned so its outlet can flow freely back into the pond.

Inside the filter are multiple chambers containing different types of filter media. These work together to provide both mechanical and biological filtration.

The foam media physically traps leaves, dirt, suspended particles and other debris carried in from the pond. At the same time, the biological filter media provides a large surface area where beneficial bacteria can establish. These bacteria help break down organic waste naturally, supporting cleaner, healthier pond water.

How the Filtration Process Works

1. Pond water enters the filter
A separate pond pump pushes water from the pond into the filter through the inlet.

2. Debris is captured
Water travels through the filter chambers and foam media, which help remove progressively smaller particles and debris.

3. Biological filtration takes place
The biological media gives beneficial bacteria somewhere to colonise, helping process organic waste within the pond system.

4. Filtered water returns to the pond
Once the water has travelled through the filtration stages, it leaves through the large outlet and returns to the pond by gravity.

This multi-chamber design provides a large filtration capacity while keeping the different filtration stages organised and accessible for cleaning.

Specifications

  • Type: Multi-Chamber Mechanical & Biological Pond Filter
  • Maximum Flow-Through: 12,000 L/h
  • Suitable for Ponds with Fish: Up to 12,000 litres
  • Suitable for Decorative Ponds: Up to 24,000 litres
  • Inlet Connections: 20 / 25 / 32 / 38 mm
  • Outlet Connections: 38 / 50 / 70 mm
  • Dimensions: 690 mm L × 518 mm W × 400 mm H
  • Return Method: Gravity return
  • UV Compatible: Compatible with a suitable external UV clarifier
  • Suitable For: Garden ponds, koi ponds, fish ponds and decorative ponds

Maximum flow-through of 12,000 L/h, suitability for fish ponds up to 12 m³ and decorative ponds up to 24 m³.

MANUAL

Gravity Fed Pond Bio Filter | Up to 12,000L

Gravity Fed Pond Bio Filter | Up to 12,000L

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at shop@waterhouse.co.za.

We deliver via courier and ship daily across the country. Orders typically arrive within 3–5 working days. If there are any unexpected delays, we’ll keep you informed along the way.

Returns
Returns are hassle-free. If you’re not completely satisfied, you can send the item back to us for an exchange, swap, or refund. Products must be returned in their original condition and packaging.

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at shop@waterhouse.co.za. Please note that returns will need to be sent to the following address: [INSERT RETURN ADDRESS]

If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at shop@waterhouse.co.za.


Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.


Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.


Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.


European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.


Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at shop@waterhouse.co.za.

Please note: If an item is returned after 7 days of use, a 12.5% handling fee will be deducted from your refund due to the nature of the products.

Damages and issues

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items

Certain types of items cannot be returned, like perishable goods, custom products , and personal care goods . We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges

The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

European Union 14 day cooling off period

Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

Refunds

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.

If more than 15 business days have passed since we’ve approved your return, please contact us at shop@waterhouse.co.za.

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