Worth the Risk? Revealing the Hidden Cost of Cheap Spa Chemicals

March 23, 2025

We all like to get a deal when it comes to buying our essentials, finding the best price or buying in bulk can reduce our monthly spending. 

In this blog post we’re going to take a quick look at why saving in the short term could cost a lot in the long run.

Buying Big

Sometimes less is more…but often more is less. It makes sense to buy that bigger pack of laundry detergent because you end up get more tabs per penny spent, and so the same goes for spa chemicals. 

Why buy a 1kg tub when you can make savings on 5? Well, that’s all well and good provided you’re buying hot tub specific chemicals. 

A lot of bulk packs are designed for use with pools - the bigger volume of water, the more chemicals needed in a shorter amount of time…that means bigger boxes of chemicals. While it may be tempting to purchase these, they can cause irreversible damage to your hot tub’s seals, gaskets, pumps, piping, and shell.

Often pool chemicals come at a higher concentration than hot tub specific chemicals, or simply aren’t designed for them at all. 

Always make sure the chemicals you buy for your hot tub or swim spa are home spa specific.

It’s cheaper on Amazon…

In a lot of cases hot tub chemicals may be cheap on warehouse websites. However, with Amazon you don’t always know what you’re buying, or who you’re buying it from. 

If an off-brand laptop charger ordered online cuts corners and overheats so much it can set fire to your couch, you can guarantee that somebody out there is making the lowest quality hot tub chemicals out there and selling them online. 

Certain cheaper sanitisers contain bulking agents to make up the volume of the tubs you buy. You may have even seen this as a chalky, powdery build up around your spa’s waterline. 

We recommend researching popular and reputable brands - or popping in-store where we can advise you on all your hot tub chemical needs. You have just made a hefty investment into a hot tub or swim spa, you don't want to ruin it by cutting corners on chemicals!

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