Question about Pentair 460736 Master Temp Pool Heater 400btu ()

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Developed a leak after freezing weather. Have been running pool all winter.

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Sorry to read about your problem, I hope this helps you out.

unless you plan to have 40 degree days and nights, try to find the leak, in the heater..if its to cold, and the unit cant do a full defrost, i suggest you unhook the unit, or rent a large portable heater and tent the unit. if you have a small leak and can repair it you are ok, if you have major leaks, you need to replace the heat exchanger on the unit..

if you plan to have further below freezing nite's you must work fast, to prevent pipes underground from bursting.

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Posted on Jan 02, 2011

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1 Answer

How do I winterize my Hayward pool heater

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Closing inground pool


How do I close my pool for the season?

by Osko Pool n Spa Information
By following the provided instructions, you will be able to professionally close your pool for the winter season. Additionally, you will protect it from winters abuse and make opening it next season...simple.

Required Tools
a) Standard Screw Driver
b) Phillips Screw Driver
c) Ratchet Set
e) Plumber Pliers
f) Sump Pump
g) Extension Cord
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Required Chemicals
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Required Accessories
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Step One - Debris & Chemicals
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Run your filter for the appropriate time to circulate all water once.
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Step Two - Vacuum & Water Level
Vacuum your pool while setting your filter to the "back wash" or "waste" setting.
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Dissassemble filtration system.
Remove sand, cartridge or DE powder from your filtration tank.
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Allow all items to dry.
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Step Four - Pillow & Cover Installation
Inflate all pool pillows or inner-tubes.
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