About the new Health Water filter and the old HW series:
The HW series (HW-302, 303, and 304) is currently the best-selling external filters not only in Poland. Their popularity is due to the low price combined with good quality and very large capacity. Currently, the manufacturer SunSun is introducing a new series of Health Water filters (702, 703, and 704) as an upgrade to the previous HW models. The filters are based on proven technology and construction that has been tested over the years and by hundreds of thousands of users. The new HW still provides outstanding filtration through its considerable capacity, but its design has been improved and the filter motor has been changed. Read about the differences in the paragraph below:
What's new? What are the differences between the new and old HW?
Already at first glance, there is a noticeable difference in the appearance of the filter. The new shape of the external body is the result of the following changes made to the design:
- guides. You will always close the filter correctly now.
The possibility of the filter leaking at the main seal has been eliminated, which was caused by the angled placement of the lid. This means the ability to close the filter at an angle away from the correct radius in the horizontal plane. The new filter has special guides that guarantee the filter is closed in the correct position. Thus, the most common problem of leaking, which was essentially the user's fault, has been eliminated.
- double bucket. Reinforced walls.
The main bucket, in other words, the container for filter media, has reinforcing columns. This solution has its motives, as it ensures proper rigidity of the structure and durability. Additionally, it dampens vibrations, thus reducing the noise of the filter's operation.
- stop the airlocks! Bubbles are only good in champagne.
Over 90% of canister filters have a somewhat flawed design of the manual pump. By design, it is responsible for filling the filter and hoses and should serve to bleed the filter. Often, it is this component that causes the filter to become airbound. It literally becomes a place where air is trapped. This leads to clogging and manifests as continuous air being expelled. Pumping or shaking the filter doesn't help much and can last for several days. Terrible!
The new Health Water has avoided this problem by implementing water flow channels and repositioning the impeller. The air bubble no longer has its "safe" place and is immediately "expelled" by the filter.
- new energy-efficient motor
Energy consumption has been reduced by 22%. This is good news given the constantly rising electricity prices. You can save up to 60 PLN a year just on electricity!
- new inlet and outlet
This element has also been modernized. Both the inlet and outlet are equipped with a clamp for the edge of the aquarium. The set also includes suction cups for the hose and hose clamps, ensuring the durability of the installation.
Inlet: has modules that increase the length of the tube. Length from 15 to 60 cm.
Outlet: Rain bar. It has modules. Length from 20 to 40 cm. The outlet is rotatable.
A large filter means better filtration.
"This has always been obvious to those who delve into the knowledge of aquaristics."
It is not the brand, price, or praise from the manufacturer that makes a filter good. The rule is simple: the more media, the better the filter. It is worth noting that HW filters are among the largest on the market. Most manufacturers only increase the pump power, which misses the point, but looks better on paper and convinces unsuspecting customers. A filter is supposed to filter through filter media! And the pump power should be appropriately matched. Too high water flow literally washes out the filter, not allowing for mechanical, biological, or chemical filtration.
Technical data:
- model / manufacturer name: HW 704A
- trade name: Health Water 4
- pump power: 45W
- pump efficiency: 2000l/h
- dedicated for aquariums up to 500l
- minimum aquarium: 300l
- maximum aquarium: 1100l
- hose: diameter 16/22 length 2 x 200cm
- dimensions: 27x27x44cm (overall dimensions with hose adapters)
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