How To Empty A Lay-Z Spa Hot Tub

Two blonde ladies relaxing in a garden hot tub.

Home hot tubs like the inflatable range from Lay-Z-Spa offer a taste of luxury in your very own garden. They’re perfect for relaxing in, whether you’re alone or with friends, during winter or in summer.

However, there is some required maintenance that comes with owning a Lay-Z-Spa, and you need to know when and how to empty your hot tub to keep it in top condition.

When to empty a Lay-Z Spa hot tub

Before it comes to emptying your Lay-Z-Spa, you’ll need to know what signs to look out for. Below you’ll find the main indicators that it’s time to change the water.

Cloudy water

When the water in your hot tub starts to look cloudy, the first thing you need to do is give it a shock dose of chemicals. This is a fairly easy process that involves using chlorine or another hot tub cleaning chemical to lower the number of contaminants in the water. If a shock dose isn’t effective, however, then changing the water straight away is advised.


If the water looks foamy, use a hot tub de-foamer to eliminate it. If the foam returns soon after you use the de-foamer, however, then empty the water, clean your hot tub, and re-fill it with fresh water.


Be mindful of when you change your spa’s water. If it’s been two months or longer, for instance, then it’s definitely time to change it, no matter how fresh it seems to be. Remember, there can be bacteria lurking in the water, so it’s always better to err on the side of caution when it comes to your family and friends’ safety.

Water odour

If you notice that the water in your tub smells, change the water immediately.

How to change hot tub water

The exact procedure differs slightly with each hot tub, so be sure to check your owner’s manual before changing the water. However, we’ve collated the basic process that applies to most Lay-Z-Spas here.

How to drain a Lay-Z-Spa

  1. Ensure the power is turned off.
  2. Remove the spa’s filter housing.
  3. Place the stop caps over the debris screens on the pipes inside the spa.
  4. Detach the pump unit.
  5. Attach the hose adapter to the lower water pipe on the outside of the spa. Then, attach your hose to it, with the other end in a drain-off area as the water’s chemicals can harm grass, plants and flowers.
  6. Remove the lower stop cap from inside the spa and allow the water to flow out.
  7. Clean the inside of the tub thoroughly (including the lid’s underside)
  8. Re-fill the Lay-Z-Spa with fresh, clean water, before putting the lid back on and re-heating the water.

How to keep your Lay-Z-Spa water clean for longer

Always ensure that anyone who uses the tub has a shower or bathes before getting in. This will ensure body oils, cosmetics etc. are removed, which is important as such substances can create bacterial build up on the spa’s surfaces.

Keep your spa covered

Always replace the spa’s cover when it’s not in use, even if you’re just popping inside for a snack (although you wouldn’t need to lock it on this occasion). This will prevent any loose debris settling on the water, while also keeping the tub warm and keeping heating costs down. Not only should you have a hot tub cover, a hot tub canopy can be a good addition too.

Use a pipework-cleaning product 

When it comes to cleaning your hot tub, the toughest part tends to be around the water line on the underside of the lid as it attracts chemical residue build-up. This can be managed by using a product that cleans your tub’s pipes. Clear Spa Flush Plus, for example, is easy to apply and helps eliminate biofilm, soap, oil and grease.

Change the water filter

Lay-Z-Spa’s feature specially designed filter cartridges that remove debris from your tub, making it run more efficiently. For an all-round cleaning solution that can also establish the water’s alkalinity, chlorine and pH levels, you can’t go wrong with a Spa Starter Kit.

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