According to my ENT the weak peroxide solution is very safe to use, even with grommets. As someone who has suffered barotrauma ear perforation, I find it hard

According to my ENT the weak peroxide solution is very safe to use, even with grommets. As someone who has suffered barotrauma ear perforation, I find it hard to believe you would persist in using a squeeze bulb at that pressure as the pain is excruciating. When you get a perforated drum it's not a volume problem, sounds are actually muted, the cilia will be fine. If you use plain tap water, make sure it is boiled in a kettle or on the stove first to kill any microbes. Hot tap water is not hot enough to kill microbes.