When remodeling your bathroom, you’re faced with the choice of standard and low flow toilet. Both types have their own set of pros and cons, but if you’re interested in water conservation and saving money on your water bill, a low flush toilet is the right option.
When looking for a low-flush toilet, be sure to keep three vital factors in mind - the flushing method, the performance specs, and the number of pieces. To help you with that, we prepared an in-depth buying guide and reviewed the most popular units the market has to offer.
Go through our Top 10 Best Low Flow Toilet List and make your choice today!
Low Flow Toilet: A Comprehensive Buying Guide
Toilets' construction is either one or double pieces. One-piece toilets have a more straightforward design but are too heavy, making them hard for one person to install. On the other hand, two-piece types are easy to install but cleaning the surface is difficult because of their hard to reach areas.
2. Water Consumption
Another vital factor to consider is the toilet's water consumption rating. Again, high-efficient toilets use around 0.8gpf to 1.6gpf. Of course, federal regulations require toilets to use at most 1.6gpf, and those that are WaterSense certified take 1.28gpf. The best thing about our toilet choices is that they offer excellent performance with less water. For instance, the Niagara Stealth model uses only 0.8 gallons per flush and still performs well.
3. Standard Ratings
Every manufacturer will claim to have the best products or services. But how can you tell if this is true? For the best low-flush toilets, you should look at the product's performance ratings from regulatory agencies, consumer reports, and reviews. In other words, choose models with WaterSense or EPA certification.
4. Size and Shape
Toilet bowls have different shapes and sizes; so, check your bathroom's capacity to determine the perfect toilet's dimensions to buy. The elongated shape is around 18 to 19 inches and fits any standard bathroom. Yet, the round shape is compact and has a height of 16 to 17 inches. Hence, it is suitable for small restrooms.
5. Type of flush
You'll notice that our high-efficient toilet choices feature single or dual flush options. So, let's discuss them.
- Single flush – This flush option uses 1.6 gallons per flush irrespective of the waste type. Thus, it sometimes consumes more water than a dual flush type.
- Dual flush – Here, you have two flush options depending on the toilet's design. For example, if you're removing solid waste, you can use between 1.28 to 1.6 gallons of water at once. But if you want to flush liquid, you'll need about 0.8 to 1.1 gallons of water.
6. Flushing Mechanism
Water-saving toilets use siphonic or wash-down flush mechanisms. The downside with siphonic systems is that they clog too often and, as such, require regular maintenance. Wash-down flush types, on the other hand, have broad trap ways for easy waste passage. But they're a bit hard to clean.
7. Installation Type
You can have floor-mounted or wall-mounted toilets. The wall-hung types are easily adjustable, takes less room space but are more challenging to install. Therefore, for the most comfortable installation work, we recommend the two-piece floor- mount units.
Your toilet's height plays a significant role in your convenience. So, if you're living with an elderly or someone with arthritis or movement difficulties, pick a model between 16 and 20 inches high. Still, many of our reviewed units are ADA compliant, but the best for comfort is the Convenient Height 20 Inch toilet.
There's also a need to choose a toilet that's beautiful and blends well with your wall décor. For this buying guide, the Saniflo 023 series leads in terms of aesthetics because they're tankless and have a concealed trapway.
High efficient toilets cost between $200 to $1000 depending on the brand and specs.
Advantages and Disadvantages of having water-saving toilets
The usual benefits of using low flow toilets are:
- Outstanding Efficiency – These toilets use less water per flush, saving thousands of gallons per year.
- Costs saving – High efficient toilets can reduce the amount you spend on energy by up to 40 percent.
- Conserves space – Since low flow toilets use less water, their tanks are small. Hence they can fit in tight spaces.
- Clogging - Energy-saving toilets are prone to clogging. Yes, heavy or solid waste can block the system, causing the bowl's content to overflow during your flush.
- Repeated flushing - You might flush more than once when dealing with solid waste; as a result, you end up using more water.
The solution to Common Low Flow Toilet Problems
Since clogging is the primary issue with water-saving toilets, we'll show you how to unclog.
- Use a plunger - Wait first until the bowl's water is half-filled before inserting your plunger. If the blockage persists, reduce the bowl's water, then pump again.
- Flange plunger - If you prefer a flange plunger, put the flange into the drain trap until it's sealed. Once you get the seal, gently stroke up and down for about 20 seconds before flushing.
- Detect leaks - Check if there's enough water supply from your tank. The reason is, your tank might leak, causing the flush valve's flapper to dangle. So, if the problem is with the tank's parts, consult a professional or replace it yourself.
- Flush more – Though flushing often increases water usage, it'll help reduce frequent clogging, especially in homes with old sewer lines.
We've offered you the top best low flow toilet models available today. So, our high-efficient toilet choices can help if you're desirous of saving money or protecting your environment,. When picking these toilets, you should consider factors like height, ease of installation, shape, size, and construction. Most importantly, always choose models with WaterSense or EPA certification.
Our top pick for the best water-saving toilet is the American Standard H2Option because of its excellent value for the money. This unit features a powerful siphonic action technology that led to it receiving the highest Maximum Performance rating. Besides, the dual-flush function allows you to select 1.1gpf or 1.6gpf depending on your needs.
If you're on a budget but searching for a toilet that takes less water, pick the Niagara Stealth model. It is affordable and uses only 0.8 gallons per flush.
For the best comfort height toilet with significant water savings, you can go ahead with the Convenient Height Extra Tall version.
Finally, we believe that this buying guide will help you to choose a toilet that suits your needs and budget.
1. How to determine toilet flush volume?
Ans. The toilet's flush volume or gpf usually appears behind the bowl's hinge. If it doesn't, raise the tank lid and locate the model's stamp inside.
2. What is gpf
Ans. The term gpf is short for gallons per flush. It tells the water volume your toilet uses. Low-flush toilets use less water, having ratings between 1.28gpf to 1.6gpf.
3. How does a low flow toilet work?
Ans. Water-efficient toilets use pressure-assist or gravity systems to clear waste. For gravity toilets, the flapper moves, releasing water into the bowl to remove debris. On the other hand, pressure-assist toilets store high-pressure water in the tank, which is released when the flush valve open.
4. How do you turn a regular toilet into a low flow?
Ans. To replace a regular toilet with a low flush type, you need an adjustable flapper, fill cycle diverter, toilet tank bag, and leakage detector.
First, install an adjustable flapper in your toilet, then set it to get your ideal flush rate.
Next, get a tank bag, fill it with water, and place it in your tank. The pack will reduce the refill water in the tank after you flush.
Again, install a valve diverter to divert excess water from the bowl to the tank. Finally, with the leak detection tablet, check your toilet for possible leaks. And, if you find any leakage, fix it at once.
5. Do low flow toilets clog more easily?
Ans. Modern low flush toilets have many designs that enhance their performance. However, the older types with 1.6gpf lack the needed pressure to drain bulky waste, resulting in frequent clogs. So, if you're using any of these old units, you can either replace or stop using toilet paper.
6. What type of toilet is the best for efficient water usage?
Ans. For the best water savings, we recommend pressure-assist toilet types because their tanks can displace trapped air to create more pressure.
7. Push-button or toilet tank lever – which one is most effective and easy to use?
Ans. Both are still effective and easy to use, but push-button types look beautiful. Besides, units with buttons offer options of light or heavy flush. However, toilets with the tank lever provide a traditional experience.