Kubernetes cost efficiency under bursty workloads and autoscaling trade-offs

[AnthonyUW]

I'm trying to design a small, self-contained water feature for my urban balcony that uses zero external electricity, relying solely on a solar-powered pump and a gravity-fed trickle system. My balcony is only 3x8 feet, gets about 5 hours of direct sun, and I have a strict budget of $200. The main challenge is that I want to use a repurposed, narrow ceramic vase as the primary reservoir, which only holds about 4 gallons, and I'm struggling to find a small, efficient submersible pump that can run reliably on a small 5-watt panel and still create a visible trickle sound over a 2-foot drop into a lower basin. Every pump I've tested either drains the battery too fast in partial shade or lacks enough head height, and I can't just buy a bigger tank because of weight restrictions on the balcony railing.

[Stephen19]

Plan a tiny, solar‑driven loop: use a compact submersible pump (1–2W) with head ~0.6–1.0 m. Put it inside the vase, draw water up to a short header reservoir or spout, then gravity‑feed down to a lower basin for the audible trickle. Use 1/4 silicone tubing, a check valve, and a flow limiter to keep noise calm. A 5W panel plus a small Li‑ion pack can cover sun hours; keep under $200.