Spa bath pump sizing

bathtubpump

We're slowly renovating our 90~100 year old house and when we get to the bathroom we intend to install a spa bath. Not a large spa/jacuzzi, just a bath. Most of those we've seen so far come with a pump that quite frankly leaves a lot to be desired. We want something that will massage our muscles, not something similar to a can of beans. At the same time we don't want to be blowing off the jets or pipework or having to choke the pump because it's too powerful.

Is there some information or a web site that can assist us in determining a suitable pump size for a given application?

Best Answer

Are you planning to build an entirely custom bath unit? Or modify an existing product?

Most jetted tub manufacturers I've come across explicitly require certain pumps and void warranties if third-party pumps are used. For example, American Standard brand has the following in their installation doc:

Do not make modifications to the whirlpool system or remove pump from factory mounting. This could adversely affect the safety and performance of the whirlpool and void the warranty

I'd check with the manufacturer first before going down this route. If they do support it, they could probably make appropriate recommendations.

Related Topic