In order to obtain maximum water depth for the most enjoyable soaking, Ofuros don’t have an overflow like the typical American bathtub. While we have on occasion installed “conventional” overflows, the preferred style allows the Ofuro to simply overflow over the top. This of course requires that the Ofuro be installed on waterproofed floor with a center drain.
For draining there’s a few options. If the Ofuro is being filled and drained for each use, the location of the drain can be specified to exactly match your plumbing layout.
Ofuros with a recirculating heating system or that are fully jetted, can have the above configuration as an option, but more frequently the draining is done through the plumbing. A “T” with a valve is simply installed into the added plumbing.