so what you guys are doing is using the cap on the bottle to dose? I know not everyone has the option of a free syringe, but i bet that would be cheaper to get just an ordinary measured bottle and a syringe from online. Just my thought. I noticed most of them bottles were over $8. for a bottle thats crazy. I picked up a new bottle with ml measurements on it for $1.25 and my syringes were free.
Guys who makeshift containers laying around and make it work in such a way that they keep their dosing up are smart. As said, if you get what the plants need in the tank thats the only thing your tank cares about, of course.
But just as using a scale feels a little more hardcore but is unnecessary vs levelled teaspoons, those who have been doing this for a while realize the stuff they spent a little more coin on is the stuff they keep for years in a hobby where the aesthetic has some value. When you're going to do something everyday for a few years, its nice to do it with something nice, and especially sweet when you can do it for $10 more than the other thing you're using. Everyone surely must understand this.
But, for the sake of making my first post of the new year on APC a little more special, I propose for you this test. If you think this is awesome and makes you want to search (reach?) for your old TI/HP/etc and make some mixes, or you think, "Hey, that C is for clear not control!", you're probably the kind of nerd who'll like using equipment that is a little more precise than makeshift (but more than adequate) solutions. And even if you don't think this is awesome, you're still a nerd, nerd.
The 1L with the plunger down (or even partway up) fits under my 40g/standard 3ft tank stand. But in my case I keep my non-light sensitive dry ferts in (what I think are) nice glass containers meant for spices and nuts and bolts and stuff out on a table in my kitchen since I was dry dosing before getting these new bottles. (I keep my light sensitive stuff on its own half a shelf in one of my kitchen cupboards.) The bottles that are out look good out on the table, too. Since reentering the hobby I don't mind having this nerd stuff out and neither do the ladies, and it is much more convenient for me. I hide my spare pipes and plumbing and pumps and anything ugly in a drawer though. Too much information? Sorry
As I remeasured a new batch, I figured it was time to post some quick thoughts of this solution after a year (much of it away from this hobby, though):
Sometimes I wish the join between the flex tubing into the stopper was tighter as it flops around, but a bonus of the design is on a new batch (lots of liquid) I can pull much of the pump body out and to the side.
Clear containers really remind you how many impurities are in our fertilizers In these cases pulling out the syringe some distance from the bottom prevents it from clogging.
I've only had one syringe clog (really at the union between the flex tubing and the syringe) and easily fixed but pumping in and out tap water. Syringe bodies are easy to clean. Small mouthed bottles not easy.
The glass has a nice weight and I've not been tempted to replace.
Have thought about using glass in the out tube just because it would look cooler.
All in all very happy and still think I will use them for years. Everybody who sees it and any ferts make ask/make a half serious meth-lab question/joke, and really, I would too. I think this bonus.