If you buy lithium batteries, they last for 10 years. And that's about how long a smoke alarm is designed to last. So 10 years from now, replace both the smoke alarm and get a new lithium battery for it.
just get a voltage tester
Muriatic Acid folks have asked what's a good way to scale back algae within the pond. We've heard that Muriatic acid works good but it does take close measuring and monitoring. We requested on KoiVet and Doc Conrad answered the next: “Muriatic acid is far too concentrated and unsafe to use to reduce pH in a fish pond, except you're dealing with a lake of over 30,000 gallons. You are prone to either drop the pH too far, or no longer wait long adequate for it to mix, or kill some fish when the muriatic acid is being jumbled together. As a substitute, use the very risk-free pH discount system of utilising white distilled vinegar. This won't hurt you, the fish will in no way get harm when you mix it in, and your micro organism within the biological filter love the acetic acid in the vinegar as food to develop on. Recommend you test a quart of vinegar per one thousand gal., then adjust in keeping with the outcomes—if this so much vinegar lowers pH under eight, use some baking soda to deliver it back up to the desired 7.Eight to 8.Three variety.
You can get them cheaper in bulk. They are rated to last 10 years. It easily saves you money in the long run. You should still test every six months.
