A Macerator Pump is a kind of pump that is connected to a toilet (or in some cases included in the toilet itself if you buy a macerator toilet) that grinds up solid waste so that it can be pumped against gravity more effectively. This kind of system isn't used particularly often in the UK, but it can provide an efficient solution to a certain kind of problem.
When to Use Them?
They are used in the home for basement bathrooms. They make solid waste liquid so that it's easier to pump the waste from below the ground into an existing sewage pipe or outlet. For bathrooms installed in a basement or cellar, this can be an affordable and easy solution to getting waste out from under the ground.
What are the Advantages?
The primary advantage of installing macerator pumps is convenience. If you're installing a new bathroom in a basement and there's no existing sewage outlet, you have 2 choices. You can either install a macerator or undergo more serious remodelling and extend the existing sewage outlet down into the basement. Extending the sewage system will be costly and troublesome while installing a macerator pump is cheaper and a lot easier. Even if there is a sewage outlet in your below ground bathroom, you might find that it's not enough to effectively clear the toilet. In such cases, macerators give you an easier method to make sure that your toilet flushes smoothly, each time.
What are the Disadvantages?
You will find that your toilet will use more water with this type of pump for flushing. The pump will make a grinding noise every time you flush the toilet which is likely to irritate some users. Older models have a reputation for being unreliable and for frequently breaking down. These two things are not quite as much of a concern these days due to advances in technology, but a macerator is not likely to be quite as reliable as a regular toilet with a normal sewage pipe connection. If you use the macerator regularly, you can expect the need to replace it within two to three years.