Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: How do you know when it is time to replace (vs, just replacing in 3 or 6 months--as these are expensive filters)?
Document: The cartridge is relatively easy to replace. It comes with a reminder gizmo that you can stick on the cartridge for replacement dates. Except that the cartridge is way under the sink and you couldn't possibly see the gizmo to be alerted to replacement time. It lasts about 3 months at full flow and then diminishes quickly.
It filters water to nice drinking taste. The cost is way too expensive, especially considering that it needs to be replaced every year. Useless battery operated beeper to let me know when year is up. I'd rather the cost was less. Haven't the manufacturers heard of computerized to do lists? It wasn't padded well in shipping. The delivery time was slow now that the holiday buying frenzy has ended.
I used H-300 filters for several years now. My general impression is that quality went to the drain while the company wants to charge you more and more every year. Three years ago you could buy this filter for $70 and it lasted one year. Last filter I bought was close to $90 and only lasted 6 months.
This product was as advertised. Being it was the first time replacing this, I was unsure how it would go. It was very easy to replace - literally screw the old one off, screw the new one one.
Is expensive if we compare it with others water filters; but since does excellent job with the best quality plus the water taste is also the best one..Conclusion:  It is ok to pay for the high price for the best quality  . Over the Amazon service and delivery time,  as always it was excellent !! !
We could not afford the price every 6 months so we went with another option. All our water is sent through one filter and is therefore fit for the refrigerator.
I really like my everpure filter system. Water tastes great, not too chlorine-ish, and I know it's clean. Considered a reverse-osmosis tank type system, but this filter does a great job and doesn't produce any waste water. The Everpure system makes replacing the filter a breeze.
Although these cartridges are expensive, they actually last far longer than recommended. With a family of two adults, our cartridge lasts about 2.5 to 3 years. I have had this system in other homes I have lived inn and will continue to install one when we move again.
Since 2007 we are using this filter, every time replacing for a new one. Great filter, works good. Water has a great taste. I will strongly recommend this product.
We have had this filter in our house since we bought our house. Easy to replace. Just remember to run the water for 10 minutes after replacing.
Answer: yes