Hot Tub Troubleshooting: 5 Tips for Maintaining Your Hot Tub

Every hot tub owner dreads the day when they pull back the cover, looking forward to all that hot steam and those relaxing massage jets, only to discover there’s a problem inside. Hot tub troubleshooting is easy when you know how. Whether you are a new hot tub owner or are a seasoned hot tubber, there are always occasions when a handy guide makes all the difference.

Our guide will help you keep on top of hot tub troubles.

How to clean a hot tub filter easily

The best way to clean a hot tub filter is consistency, Do it regularly. Believe it or not, the best way to keep your filters from clogging up is to simply spray them down with clean water once a week. You can use a hose or clean straight from the tap. Just be sure to never use too much pressure as this could cause damage. When you need something a little stronger, use a dedicated filter cleaning solution to remove debris and grease.

One for Your Calendar

A monthly clean is highly recommended. Just pop a monthly reminder in your calendar and you’ll easily keep on top of your hot tub maintenance schedule. There are highly effective hot tub cleaning solutionsavailable that will deeply clean and remove residue.

Soak the filter in cleaning solution when your hot tub is off – an overnight soak is usually best – then dry and replace. Once a year, give your hot tub the ultimate clean with a full flush. Hot tub flush solutions remove the build up of soap and oil deposits in spa plumbing.

swim spa placement

How much chlorine to add to hot tub at set up?

This part of the hot tub troubleshooting guide is all about avoiding issues. The rule of thumb for adding first-time chlorine to your hot tub is to measure around 60g of chlorine tablets for every 1,500 litres of water. However, we always recommend following instructions supplied with your chlorine tablets.

Chlorine is an important element of filling your hot tub afresh. Keeping on top of chlorine levels helps to avoid many of the common issues this hot tub troubleshooting guide covers.

How do I lower chlorine in my hot tub?

If you’re unsure if there is too much chlorine in your hot tub, you need to measure levels with chlorine test strips. These levels are measured in ppm – and anything higher than 3.0ppm is considered unsafe.

To lower your chlorine levels, it may be as simple as draining the hot tub and starting again. However, some people choose to let chlorine dissipate in the hot tub over a few days, without using further sanitiser. If all else fails, chlorine neutraliser, used sparingly, can help to reduce the sanitiser levels in your tub.

How to manage alkalinity in your hot tub

A key part of any hot tub troubleshooting plan is to make sure that your spa has a healthy PH level. You need a safe total alkalinity, or TA, to prevent your water from becoming too acidic. The two ends of the PH scale are acid and alkaline. For best results, keep your PH between 7.2 and 7.8 to be designated safe.

However, you also need to ensure your spa alkalinity is not strong enough to exceed PH 7.8. High PH can lead to health risks – your chlorine simply won’t be sanitising the tub. Low PH can also cause skin irritation and degrade hot tub components.

To manage alkalinity in your hot tub, you need to carefully balance your water with ‘increaser’ and ‘reducer’ products. You should always test your tub water with a PH strip to monitor PH levels as part of your hot tub maintenance schedule.



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The Roman Spas brand has been acquired by Scunthorpe Hot Tubs. Please visit our website to see our best and latest deals!

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Includes Free R32 Low Temp Heat Pump 5KW

Valued at £1,995

Our heat pump can save you money and keep your hot tub running all year. It’s efficient and perfect for regular use. It’s also quiet and can operate well in temperatures between -7°C and 43°C. Consider it an investment that helps you save on energy costs while maintaining your hot tub’s temperature.

– Offer only available with Thermal and Platinum Ranges –

Hot Tub Cover Lifter (Recommended)

With the use of our Cover Lifter, one person can easily remove our thermo cover with ease

Hot Tub Steps (Recommended)

Perfect for easy access to your hot tub. (Style may vary depending on hot tub range)

Hot Tub Hand Rail

Enter or exit your hot tub without much effort or cost.

Additional Filter

Replacement for hot tub filters

Adjustable Towel bar

Perfect for having your towel ready when leaving the hot tub.