Why Your Rainwater Doesn't Taste, Smell, or Look Right
If your drinking water suddenly tastes unusual, has an unpleasant smell, or doesn't look as clear as it should, it's often a sign that something has changed inside your water tank.
Many homeowners rely on rainwater every day without realising that sediment, bacteria, organic matter, and algae slowly build up over time. While some changes in your water can be harmless, others can indicate contamination that should be addressed as soon as possible.
Regular water tank cleaning helps keep your water fresh, safe, and tasting great. At Northern Tank Cleaning, we help people throughout North Auckland and Rodney restore the quality of their tank water with professional water tank cleaning services.
TASTE?
Does your water tank water taste different? A strange taste is a sign that your tank needs attention.
Your rainwater passes over your roof, through gutters, and into your storage tank. Along the way it can collect leaves, bird droppings, pollen, dust, insects, and other organic material. As these materials break down inside your tank, they can affect the flavour of your drinking water.
Common causes:
Sediment building up on the bottom of the tank
Decaying leaves and organic matter
Algae growth
Bacterial contamination
Old or dirty filters
Long periods of stagnant water
Sometimes the problem isn't immediately obvious because the water still looks clear. However, the build-up inside the tank can continue to affect the taste over time.
A professional water tank cleaning removes years of accumulated sediment and organic material that household filtration alone cannot eliminate. Once your tank has been thoroughly cleaned, many customers notice a significant improvement in the taste of their water.
If your water has developed a metallic, earthy, musty, or stale taste, you’ll need to get your water tank cleaned.
SMELL?
Does your water tank water smell? Clean rainwater should have very little smell.
If your water has developed an earthy, musty, rotten, or sulphur-like odour, something inside your water system is creating the smell.
Some of the most common causes include:
Rotting leaves inside the tank
Animal or bird contamination
Algae growth
Bacteria feeding on organic matter
Sludge that has accumulated over many years
Warm weather can make these smells even more noticeable, especially if organic material has been sitting in the bottom of the tank for an extended period.
For an odour issue, you’ll need a “full clean” with replacement water. Odour can be very hard to remove from water.
If your water has developed an unusual smell, a professional water tank cleaning is often the only real long-term solution. Don’t hesitate to give us a call.
APPEARANCE?
Changes in the appearance of your water can range from slightly cloudy to brown, yellow, green, or containing visible particles.
Some common causes include:
1.)Brown or muddy water
Heavy rain can stir up sediment that has been sitting on the bottom of the tank for years. Every time the sediment is disturbed, it can enter your household water supply or clog your filters. A “Basic Clean” will suck up the sludge from the bottom of your tank, and save you money on filter replacements.
2.)Cloudy water
Cloudiness can be caused by tiny air bubbles, fine sediment, or bacterial growth. If cloudiness doesn't disappear after sitting in a glass for a few minutes, your tank may need inspection.
3.)Green water
Green water is often caused by algae growing inside the tank. This usually happens when sunlight enters through damaged lids, translucent tanks, or unsealed inspection hatches.
4.) Floating debris
Leaves, insects, roof material, pollen, and other debris can enter through gutters or damaged tank lids. Over time these materials accumulate and contribute to poor water quality.
Professional water tank cleaning removes the accumulated sediment and debris that causes discoloured water. During every clean, Northern Tank Cleaning also inspects your tank for issues that may be allowing contamination to enter in the first place.
How Often Should You Have Water Tank Cleaning?
Even if your water seems fine, sediment continues to build up every year.
Health New Zealand recommends maintaining rainwater collection systems, and regular water tank cleaning is one of the best ways to protect your drinking water quality, your pump, and your filtration system.
For most households, professional water tank cleaning every 1–3 years is a sensible guideline, although properties with lots of trees, or homes with older tanks may benefit from more frequent cleaning.
Regular water tank cleaning helps:
Improve the taste of your drinking water
Eliminate unpleasant smells
Remove sediment and sludge
Protect pumps and filters
Improve overall water quality
Extend the life of your water system
Trust Northern Tank Cleaning for Professional Water Tank Cleaning
If your water tastes strange, smells unpleasant, or doesn't look as clean as it should, don't ignore the warning signs.
At Northern Tank Cleaning, we provide professional water tank cleaning throughout North Auckland and Rodney using specialised equipment that removes built-up sediment, sludge, and organic matter from your tank.
Whether your water has recently changed or your tank simply hasn't been cleaned for several years, we're here to help restore clean, fresh, healthy water for your household.
Contact Northern Tank Cleaning today to book your professional water tank cleaning service and enjoy better tasting, cleaner water from your rainwater tank.
